Key Question #$8$

Natalie and Preston would like to accumulate $$25000$ at the end of $3$ years for a future down payment on a house in Prescott. How much should they deposit at the end of each year in a savings account that pays $7\mathrm{.}2\frac{\%}{a},$ compounded weekly, to meet their goal?

a$.$ Calculate the equivalent yearly rate

b$.$ Determine the yearly deposit.