A time line is a valuable tool used in value analysis because a. it is the only way to determine future cash value. b. it helps you to strategize a time line for bank deposits. c. it helps you to visualize what is happening in a time value problem. d. it shows that the interest rate is always constant. e. using one makes you an expert in time value analysis.In order to determine the interest rate of a cash flow, you must know a. the periodic rate of return. b. the number of periods and the future value. c. the number of periods and the present value. d. the present value, the future value, and the number of periods. e. the future value and the present value