can some help me on the two problems

How much more would you earn in the first investment than in the second investment? $48,000 invested for 50 years at 14% compounded annually $48,000 invested for 50 years at 7% compounded monthly You would earn $ more on the first investment than in the second investment. (Round to the nearest dollar as needed.)You deposit $4000 in an account that pays 8% interest compounded semiannually. After 2 years, the interest rate is increased to 3.32% compounded quarterly. What will be the value of the account after a total of 4 years? The value of the account will be 35 . (Round to the nearest dollar as needed.)