Compute the future value of a $105 cash flow for the following combinations of rates and times. (Do not round intermediate calculations. Round your answers to 2 decimal places.) a. r= 8%; t= 10 years b. r= 8%; t= 20 years c. r= 4%; t= 10 years d. r= 4%; t= 20 years Future Value a. b. C. d