6. Exponential Functions
6.06 Simple interest
Interactive practice questions
If $\$16716$$16716 of simple interest was earned in $7$7 years, how much interest was earned each:
a
year?
b
month?
Easy
1min
Calculate the simple interest earned on an investment of $\$1050$$1050 at a semiannual rate of $1.1%$1.1% for $9$9 years.
Write your answer to the nearest cent.
Medium
2min
Calculate the simple interest earned on an investment of $\$7000$$7000 at $1.8%$1.8% per quarter for $9$9 years.
Give your answer to the nearest cent.
Medium
1min
The simple interest on an investment of $\$4800$$4800 over $20$20 months is $\$760.00$$760.00.
If the annual interest rate is $r$r, find $r$r as a percentage correct to one decimal place.
Medium
1min
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