Please show formulas

Part A. Calculate the total future value (the value at time 5) of the following cash flows. These cash flows occur once every year and at the end of each year. You may use the provided template or appropriate Excel functions. 3 Interest rate 5% Accumulation at beginning of year 5 Year Interest earned during the year 2 Payment at the end of each year 300 300 300 300 300 3 Part B. What if your reward is $200 for the next year. $300 for the 2nd year, $400 for the 3rd year, and $500 for the 4th year, how much will your account balance be at the end of the 4th year? All payments will still be made at the beginning of every year. 16 2% 17 Interest rate 18 Year Accumulation at beginning of year Interest earned during the year 0 Payment at beginning of each year 200 300 400 500 2 3