1.) A man invested $600 at 8% per annum for 5 years. Calculate:
a.) The simple interest payable

b.) The total amount of money the man collected at the end of the 5-year period.

2.) Mr. Ford invested $12 450 in a bank at 7.25% per annum simple interest for 6 years. Calculate:
a.) The interest he was paid

b.) The total of amount of money he would have received at the end of the period of investment.

3.) The simple on $15 000 for 9 years is interest is paid when $800 is invested for 5 years.