5. INVESTMENT DECISION Bill Baxter has $25,000 to invest for a year. He can lend it to his sister, who has agreed to pay 10, simple interest for the year. Or, he can invest it with a bank at 6, compounded quarterly for a year. How much additional interest would the simple interest loan to his sister generate? Find the effective interest rate for both investments to the nearest hundredth of a percent. (a) $11,431.57 (b) $2931.57 (a) (b) (a) (b) (a) (b) (a) (b) (a) (b)