Question 1

. If -X>8, then X _____ -8.

		>
		<
		Neither of above.

2 points

Question 2

-X 0 for all X's.

True

False

2 points

Question 3

- 2.5 > -1.

True

False

2 points

Question 4

A - (B - C + D) = A - B + C - D.

True

False

2 points

Question 5

Two fractional numbers cannot add up unless _____________________.

		they have common numerators
		they have common denominators
		they are both positive
		they are both negative

2 points

Question 6

X+2 > X for all X's.

True

False

2 points

Question 7

Solve equation 2X+29 = 15 for X. ( That is, calculate the value of X satisfying this equation.)

2 points

Question 8

Solve equation 7X + 11 =2 (X + 13) for X. (That is, calculate the value of X satisfying the equation.)

2 points

Question 9

A store purchases compact disks (CD) from its supplier at $3 per unit, and sells the CDs to its customers at $5 per unit. The store sold 5,000 CDs in last November. The fixed cost of the store is $4,000 per month.

What is total revenue (sales) of last November in dollars?

2 points

Question 10

A store purchases compact disks (CD) from its supplier at $3 per unit, and sells the CDs to its customers at $5 per unit. The store sold 5,000 CDs in last November. The fixed cost of the store is $4,000 per month.

What is the total net profit of last November in dollars?