I need help solving these problems

Question 1

Express the first number as a percentage of the second number. 24 pounds of flour are used to make a batch of 40 pounds of pizza dough.

(Round to the nearest tenth of a percent if necessary.)

	76%
	24%
	60%
	40%

Question 2

My actual weight is 142 pounds. The bathroom scale says my weight is 141.5 pounds. The scale at the doctor's office gives a reading of 142.7 pounds. What is the absolute error for the measurement taken at the doctor's office?

1)

1.2

2)

0.7

3)

-0.7

4)

-1.2

5)

0.5

6)

-0.5

Question 3

There are 20 students in a class. Nine of those students are women. What percent are men? Round to the nearest tenth of a percent if necessary.

	60%
	50%
	55%
	45%

Question 4

An office supplier needs to know if they can alter their packaging. There areclips for each box. The mass of each paper clip is4.010^4kg. What is the combined mass of the paper clips to go in the box?

1)	3.2 kilograms

2)	32 kilograms

3)	3.2x10^-7 kilograms

4)	3.2x10^7 kilograms

Question 5

The distance from the Earth to the Moon is about 240,000 miles away. What is the length written in Scientific Notation?

1)	2.3 x 106mi

2)	2.4 x 105mi

3)	2.4 x 104mi

4)	2.4 x 103mi

5)	2.4 x 102mi

6)	2.4 x 101mi

Question 6

There are 28 students in a class. Twenty-one of those students are women. What percent are men? Round to the nearest tenth of a percent if necessary.

	25%
	65%
	35%
	75%

Question 7

The Mississippi River is about 6200 kilometers. What is the length written in Scientific Notation?

1)

6.2x10^1

2)

6.2x10^2

3)

6.2x10^3

4)

6.2x10^4

5)

6.2x10^5

6)

6.2x10^6

Question 8

38 is 60% of what number?Round to two decimal places, if necessary.

	72.2
	63.33
	60
	38

Question 9

If a speedometer's absolute error is 3 mph and it measures a speed of 37 mph, what is the relative error of this measurement expressed as a percentage? (Round to the nearest tenth of a percent if necessary.)

1)

6.1%

2)

6.8%

3)

7.2%

4)

7.8%

5)

8.1%

6)

8.8%

Question 10

The average number of words spoken by men each day is 10,000 words and the average number of words spoken by women each day is 25,000 words. If the population of the Earth is 6 billion people and approximately half are men and half are women, each day how many words are spoken by women?

1)	75,000 words

2)	150,000 words

3)	210,000 words

4)

7.510^13

5)

1.510^14

6)

2.110^14

Question 11

My actual weight is 158 pounds. The bathroom scale says that I weigh 156.2 pounds. The scale at the doctor's office, gives a reading of 159.1 pounds. What is the percentage error for the measurement taken at home?

1)

-1.14%

2)

-0.114%

3)

-11.4%

4)

1.14%

5)

0.114%

6)

11.4%

Question 12

The town has not had any rain for 30 days straight. The reservoir was at the 52.4 feet level but is now currently at 29.8. What is the percent of change? (Round to the nearest tenth of a percent if necessary.)

	75.8% increase
	75.8% decrease
	43.1% increase
	43.1% decrease

Question 13

If a speedometer's absolute error is 1 mph and it measures a speed of 52 mph, what is the relative error of this measurement expressed as a percentage? (Round to the nearest tenth of a percent if necessary.)

1)

1.5%

2)

1.9%

3)

2.2%

4)

2.8%

5)

3.2%

6)

4.2%

Question 14

Answer the following questions based upon the chart below:

Good	Year 1	Year 2	Year 3
---	Price	Price	Price
Pizzas	$ 10	$ 15	$16
Rent	$ 600	$ 625	$655
Car	$ 100	$ 120	$135
Phone	$ 50	$ 35	$38

What is the percentage change of the total cost of year 2 to the total cost of year 3? (Round to the nearest tenth of a percent.)

	10.0%
	11.1%
	5.8%
	6.2%

Question 15

Evaluate the following Expressions: 4/7x1/11 and 2/5+1/10

	5/18 and 1/2
	5/18 and 3/10
	4/77 and 1/2
	4/77 and 3/15

Question 16

Based on the chart below, what is the percent change for the rent from year 1 to year 2?

(Round to the nearest tenth of a percent if necessary.)

Good	Year 1	Year 2
---	Price	Price
Pizzas	$ 10	$ 14
Rent	$ 600	$ 655
Car	$ 100	$ 120
Phone	$ 50	$ 40

Question 16 options:

	92.6%
	9.2%
	52.2%
	4.4%

Question 17

Find the change in home values and the percentage change. With the housing market crash, the average home values decreased from 304,000 to 232,000. (Round to the nearest tenth of a percent.)

Change: __________________.

Percentage Change: __________________.

Question 17 options:

	-232,000; -76.3%
	232,000; 76.3%
	72,000; 23.7%
	-72,000; -23.7%

Question 18

What percent of 90 is 40? Round to the nearest hundredth of a percent, if necessary.

	36.36%
	33.33%
	40%
	44.44%

Question 19

My actual weight is 192 pounds. The bathroom scale says that I weigh 190.6 pounds. The scale at the doctor's office gives a reading of 194.1 pounds. What is the absolute error for the measurement taken at doctor office?

1)

3.5

2)

-3.5

3)

2.1

4)

-2.1

5)

0.2

6)

-0.5

Question 20

Answer the following questions based upon the chart below:

Good	Year 1	Year 2	Year 3
---	Price	Price	Price
Pizzas	$ 10	$ 15	$18
Rent	$ 600	$ 625	$675
Car	$ 100	$ 120	$145
Phone	$ 50	$ 35	$40

What is the percentage change of the total cost of year 2 to the total cost of year 3? (Round to the nearest tenth of a percent.)

Question 20 options:

	10.4%
	9.5%
	15.5%
	4.6%

Question 21

What is 90% of 35? Round to the nearest tenth, if necessary.

	30
	33.5
	32
	31.5

Question 22

The Amazon River is about 6,400 kilometers. What is the length written in Scientific Notation?

1)

6.4x10^6

2)

6.4x10^5

3)

6.4x10^4

4)

6.4x10^3

5)

6.4x10^2

6)

6.4x10^1

Question 23

An office supplier needs to know if they can alter their packaging. There areclips for each box. The mass of each paper clip is7.010^4kg. What is the combined mass of the paper clips to go in the box?

1)	14 kilograms

2)	1.410^7kilograms

3)	1.4 kilograms

4)	1.410^7kilograms

Question 24

Express the first number as a percentage of the second number. 28 pounds of flour are used to make a batch of 42 pounds of pizza dough. (Round to the nearest tenth of a percent if necessary.)

	42%
	66.7%
	72.4%
	60%

Question 25

Find the change in home values and the percentage change. With the housing market crash, the average home values decreased from 225,000 to 185,000. (Round to the nearest tenth of a percent.)

Change: __________________.

Percentage Change: __________________.

Question 25 options:

	-185,000; -82.2%
	40,000; 17.8%
	185,000; 82.2%
	-40,000; -17.8%

Question 26

Based on the chart below, What is the percent change for the Car cost from year 1 to year 2?(Round to the nearest tenth of a percent if necessary.)

Good	Year 1	Year 2
---	Price	Price
Pizzas	$ 10	$ 14
Rent	$ 600	$ 655
Car	$ 100	$ 120
Phone	$ 50	$ 40

Question 26 options:

	9.1%
	16.67%
	20%
	2.0%

Question 27

There are 30 students in a class. Nine of those students are women. What percent are men? Round to the nearest tenth of a percent if necessary.

	30%
	9%
	70%
	21%

Question 28

Evaluate the following Expressions: 5/8x1/4 and 2/3+1/5

	3/16 and 3/8
	5/32 and 3/8
	5/32 and 13/15
	3/16 and 13/15

Question 29

Evaluate the following Expressions: 6/7x3/5 and 6/7+1/14

	9/12 and 13/14
	18/35 and 13/14
	18/35 and 7/21
	9/12 and 7/21

Question 30

If a student earned a 92% on a test when answering 48 questions correctly, assuming all the questions are worth the same amount of points, how many questions were on the test? Round to the nearest whole number if necessary.

	48
	52
	56
	44