need help with this question

A company must pay a $308,000 settlement in 3 years. (a) What amount must be deposited now at 5% compounded semiannually to have enough money for the settlement? (b) How much interest will be earned? (c) Suppose the company can deposit only $100,000 now. How much more will be needed in 3 years? (d) Suppose the company can deposit $100,000 now in an account that pays interest continuously. What interest rate would they need to accumulate the entire $308,000 in 3 years? . . .. . (a) The amount that must be deposited is $ (Do not round until the final answer. Then round to the nearest hundredth as needed.)