1. 81 / [(5)² - 16] - 4[(2)³ - 13]
2. $213.85 (1- 0.095 x 5/12)

3. Suppose a group of consumers spends 30% of its disposable income on food, 20% on clothing and 50% on rent. If over the course of the year the price of food rose 10%, the price of clothing dropped 5% and rent rose 15%, what was the simple and weighted average price increase experienced by the consumers?

4.Express the ratio 6 :5:8 as:

a. an equivalent ratio in it's lowest terms

b. an equivalent ratio with it's lowest term 1

5.Solve the following proportion for the unknown terms:

X:3600:y = 48:40:105

6. Ann put $15,000 into a 90 day term deposit that paid a simple interest rate of 3.2%.When the term deposit matured, she invested the entire amount of the principal and interest from the first term deposit into a new 90 day term deposit that paid the same rate of interest.What total amount of interest did she earn on both term deposits?

7. What amount invested at 4 % on November 19, 2020 had a maturity value of $10,000 on March 3, 2021?

8. An investment savings account pays interest as follows:

1.00% (per annum) on the first $1,000

1.75% (per annum) on the portion of the balance between $1,000 and $3,000

2.25% (per annum) on any balance in excess of $3,000

What interest will be paid for the month of January if the opening balance was $3,678, $2,800 was withdrawn on the 14^th of the month and $950 was deposited on the 25^th of the month?

Please calculate value up to 2 decimals for all questions