The Richards Company purchased a machine for $5,000 down and $300 a month payable at the end of each of the next 36 months. How would the cash price of the machine be calculated, assuming the annual interest rate is given? $15,800 $5,000 plus the present value of $10,800 ($300 x 36) $5,000 plus the present value of an ordinary annuity of $300 for 36 periods. $5,000 plus the present value of an annuity due of $300 for 36 periods