4. On March 13, Nada joined a saving account. Her bank will automatically deduct BD 160 from her checking account at the end of each month, and deposit it into her saving account, where it will earn 5 % annual interest. The account comes to term on December 1. Find the following:

a. Find the future value of Nadas saving account.

b. Find Nadas total contribution to the account.

c. Find the total interest earned on the account.

5. Khalid recently set up a tax-deferred annuity to save for his retirement. He arranged to have BD 75 taken out of each of his monthly checks; it will earn 4% annual interest. He just had his 20 birthday, and his ordinary annuity comes to term when he is 60. Find the following:

a. Find the future value of Khalids annuity.

b. Find Khalids total contribution to the annuity.

c. Find the total interest earned on the annuity.