olve the following problems. (a) (10 pt. The cash price of a new automobile is $10,000. The purchaser is willing to finance the car at 18% ib monthly and to make payments of 250 at the end of each month for 4 years. ind the down payment wch wll be necessary (b) (10 pt.) What would you be willing to pay for an infinite stream of $37 annual payments beginning now if the interest rate is 8% per annum