Problem $3$: Calculating Interest Rates For each of the following, solve for the unknown interest rate:

Present Value $($$$)$

Years

Interest Rate$(\%)$

Future Value$($$$)$

$500$

$4$

$3$a$\_\_\_\_\_\_\_\_$

$600$

$675$

$9$

$3$b$\_\_\_\_\_\_\_\_$

$1,200$

$12,500$

$12$

$3$c$\_\_\_\_\_\_\_\_$

$85,000$

$55,000$

$24$

$3$d$\_\_\_\_\_\_\_\_$

$1,200,000$

PART $3$a:

Question $9$ options:

Question $10(2\mathrm{.}5$ points$)$

Listen

PART $3$b:

Question $10$ options:

Question $11(2\mathrm{.}5$ points$)$

Listen

PART $3$c:

Question $11$ options:

Question $12(2\mathrm{.}5$ points$)$

Listen

PART $3$d:

Question $12$ options: