please can you answer this all...thank you so muchhh

by step pleaseee

3. Mr. Mogi borrowed 10,000.00 at 6% interest. Compute for the total amount that he has to pay back after3 years. 4. A newborn child receives a 20,000.00 gift toward a college education from her grandparents. How much will the 20,000.00 be worth in 15 years if it is invested at 7% compounded monthly? 5. One bank advertises an interest rate of 7.25%, compounded quarterly, on a certificate of deposit. Another bank advertises an interest rate of 8%, compounded monthly. Which investment has the higher annual yield