James needed money for some unexpected expenses, so he borrowed $6,146.66 from a friend and agreed to repay the loan in six equal installments of $1,250 at the end of each year. The agreement is offering an implied interest rate of James's friend, Chris, wants to go to business school. While his father will share some of the expenses, Chris still needs to put in the rest on his own. But Chris has no money saved for it yet. According to his calculations, it will cost him $36,347 to complete the business program, including tuition, cost of living, and other expenses. He has decided to deposit $4,200 at the end of every year in a mutual fund, from which he expects to earn a fixed 7% rate of return It will take approximately years for Chris to save enough money to go to business school