Suppose a person borrows P dollars with a monthly interest rate r and pays it back with equal monthly payments of m dollars. If interest on the loan balance is compounded monthly, then the bakance B on the loan after t monthly payments is B(t)=rm+(Prm)(1+r)t. Let a person borrow P=$400,000 with a monthly interest rate of r=123.3%, compounded monthly: a. Find the monthly payment necessary to pay back the loan over a period of 360 months, and the total amount paid over the life of the loan. b. Suppose the monthly payment found in (a) was increased by 10%. Find the time required to pay back the loan