An investor is considering an investment that will pay $2,180 at the end of each year for the next 10 years. He expects to earn a return of 12 percent on his investment, compounded annually. Required: a. How much should he pay today for the investment? b. How much should he pay if the investment returns are recelved at the beginning of each year? (For all requirements, do not round intermediate calculations and round your final answers to the nearest whole dollar amount.)