attempts 0 Keep the Highest 1/2 9.45% 9. Implied interest rate and period 7.00% Consider the case of the following annuities, and the need to compute either their exped 3.26% br return or duration 6.09% Raul needed money for some unexpected expenses, so he borrowed $4,234.01 from a of $1,250 at the end of each year. The agreement is offering an implied interest rate of agreed to repay the loan in four equal installments Consider the case of the following annuities, and the need to compute either their expected rate of return or duration Raul needed money for some unexpected expenses, 6.00 years pd $4,234.01 from a friend and agreed to repay the loan in four equal installments of $1,250 at the end of each year. The agreement is hplied interest rate of 5.10 years Raul's friend, Nicholas, wants to go to business Scho 8.10 years father will share some of the expenses, Nicholas still needs to put in the rest on his own. But Nicholas has no money saved for it yet. Ad calculations, it will cost him $30,044 to complete the business program, including 7.50 years tuition, cost of living, and other expenses. He has de sit $4,200 at the end of every year in a mutual fund, from which he expects to cam a fixed 7% rate of return. It will take approximately for Nicholas to save enough money to go to business school