a$.$ Use the appropriate formula to find the value of the annuity.

b$.$ Find the interest.

$\backslash$table$[[\backslash$table$[[$Periodic Deposit$],[50$ at the end of each month$]],\backslash$table$[[$Rate$],[3\%$ compounded monthly$]],-$ Time$],[$$$50$ at the end of each month,$3\%$ compounded monthly,$15$ years$]]$

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a$.$ The value of the annuity is $

$($Do not round until the final answer. Then round to the nearest dollar as needed.$)$

b$.$ The interest is $

$($Use the answer from part $($a$)$ to find this answer. Round to the nearest dollar as needed.$)$