Also ya know show me the formulas for annuities due?

The instructions in the book are: Find the amount of the following annuities due if interest is compounded annually. Find the amount of interest earned.

R= $1200 i=o.075 n=8

Answer in back of book

$13,475.82

$3875,82

R=$17544 i=0.08 n=10

Answer in back of book

$138,997.66

$33,733.66