Check my wor Johan recently received his annual performance bonus from his employer. He has set up an investment savings plan to which he will contribute $2,700 each year from his bonus and $470 per month from his regular salary. Johan will make his initial contributions of $2,700 and $470 today. a. What will the plan be worth after 25 years if it earns 5.6% compounded monthly? (Do not round intermediate calculations and round your final answer to the nearest dollar amount.) Investment worth $ b. How much did Johan's contributions earn during the 25 years? (Do not round intermediate calculations and round your final answer to the nearest dollar amount.) Earnings $