Suppose that a family wants to start a college fund for their child. if they can get a rate of 7.5%, compounded monthly, and want the fund to have a value of $75,000 after 18 years, how much should they deposit monthly? assume an ordinary annuity and round to the nearest cent.      a. $164.98                    b.$165.30                                  c.$166.21                                                d.$167.52