Please answer and provide explanation

3. If you invest $10,000 in a 4-year certificate of deposit (CD) paying 10 percent interest compounded annually, determine how much the CD will be worth at the end of 4 years. a. $13,600 b. $45,730 c. $14,640 d. $15,958 4. Your brother, who is 6 years old, just received a trust fund that will be worth $25,000 when he is 21 years old. If the fund earns 10 percent interest compounded annually, what is the value of the fund today? a. $104,602 b. $6,575 c. $5,975 d. $6,8756. Use the following information to calculate the interest rate on an eight-year bond just issued by Becher Inc. Inflation: next two years = 2.5% year 3 and beyond = 4.5% Pure Rate = 2.0% Maturity Risk Premium = zero for a 1-year maturity, increasing by 0.1% each year thereafter Default Risk Premium = 1.5% Liquidity Risk Premium = 0.0% for treasuries; 0.5% for corporate bonds