Answer: Alright get ready for a long explanation
he would have 820.00$ in his savings account after the 5 years
Explanation:
if he earns 12% interest then you would have to multiply 100 by the 12/100 which is .12 in decimal form.
100 TIMES .12 = $12.00
because we are doing this in months you need to multiply the amount he makes per month by the amount of months that the 100 dollars is in the bank account.
Alright so now that thats over, he makes 12 dollars every month
thers 12 months in a year, so you would have to do 12 (the number of moths) times 5 (the amount of years) that equals 60.
60 TIMES the amount he makes per month ($12) equals $720.00
LASTLY! add the amount he made to the original amount and you get the answer of $820.00
i hope this helps :)