1. Find the simple interest due on $4000 loaned for 4 months with a 12% interest rate....

Question:

1. Find the simple interest due on $4000 loaned for 4 months with a 12% interest rate.
2. Find the simple interest due on $6500 loaned for 3 months with a 20% interest rate.
3. Find the total amount in an account if $5500 is compounded annually at 12% for 15 years.