Your friend has borrowed $650 from a bank. Calculate the simple interest in the following situation:
a.) What would the total interest be if he hasn't paid any of his loan back in 4yrs and the rate is 8%
b.) What is the total amount owing if he hasn't paid any of his loan back in 4yrs?
c.) What would be the total interest be if he paid $150 a year for those 4yrs at a rate of 8%?
