Find the interest and the amount to pay back on the following simple loans.

7. $750 at 12% 9 months
8. $1,500 at 14% for 2 years
9. $2,500 at 11% for 18 months
10. $12,500 at 10.5% for 3 years
11. $4,500 at 8% for 2 years
12. $1,850 at 9.5% for 18 months
13. $7,000 at 6.25% for 2 years
14. $300 at 18% for 2 months
15. $960 at 6.05% for 5 years
SHOW WORK AND ANSWER!

as before, i=Prt

for the amount, just add the interest to the original principal.