Question

I agreed to lend a friend money at a special interest rate of 10% per year on the condition that the friend borrow enough that they would pay %650 in interest over a period of 4 years what is the minimum amount my friend could borrow

Answer 1

thats $650 dollars not percent

Answer 2

I = PRT

650 = P * 0.1 * 4

650 = 0.4P

650 / 0.4 = P

1,625 = P