The following situations involve the application of the time value of money concept:

a. Jan Cain deposited $19,500 in the bank on January 1, 1999, at an interest rate of 12% com-pounded annually. How much has accumulated in the account by January I, 2016?

b. Mark Schultz deposited $43,200 in the bank on January 1, 2006. On January 2, 2016, this deposit has accumulated to $84,974. Interest is compounded annually on the account.

What rate of interest did Mark earn on the deposit?

c. Les Hinckle made a deposit in the bank on January 1, 2009. The bank pays interest at the rate of 8% compounded annually. On January 1, 2016, the deposit has accumulated to $30,000. How much money did Les originally deposit on January 1, 2009?

d. Val Hooper deposited $11,600 in the bank on January 1 a few years ago. The bank pays an interest rate of 10% compounded annually, and the deposit is now worth $30,052. For how many years has the deposit been invested?