Rebecca invested $2,120 for 304 days at a simple interest rate of 2.50% p.a. How much more or less interest would she have earned on the investment if her money was growing at a simple interest rate of 3.00% p.a. instead of 2.50% p.a.?

Round to the nearest cent

An annuity provides $7,900 at the end of every month for 10 years and earns an interest rate of 4.5% compounded monthly.

a. What would be the purchase price of the annuity?

Round to the nearest cent

b. What is the total amount of interest earned?

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Jacob received an academic achievement prize of $1,700 from her college. She deposited this money into a savings account on August 05, 2016. If the interest accumulated on the investment when she withdraws the money on March 27, 2017 was $35.42, calculate the annual rate of simple interest that the savings account was providing her.

%

Round to two decimal places