An investor makes deposits of 250 each every 2 months from March 1, 2007 to January 1, 2018, inclusive. (a) Find the value of this series of payments on March 1, 2007 if it is assumed that a nominal annual interest rate of 2.4% compounded six times per year until the sixth payment and a nominal annual discount rate of 3% com- pounded quarterly starting just after the sixth payment.