Having trouble with #3 please help

3 Your litle brother is starting a lawn mowing business but does not have enough money to buy his own lawnmower so he wants to buy yours on a payment plan He will give you $50 now plus $20 at the end of the month for the next 6 months plus an additional $75 at the end ofthe 6 months if he can keep the mower what is the present value of the oeer he is making for your mower using a nomnal interest rate of 18% compounded monthly? [1 point] Draw the combined cash flow diagram including the unknown value. [3 points] Draw the individual cash flow diagrams for the $50 initial, $20 monthly and $75 final payments 3 points] What are the values of the following? If it is the answer we are looking for write "ans if not applicable write "n/a" Hint: seesecond sheet of formulas from inside cover 2 points] Solve using the tables from Appendix C At a minimum show the value obtained from the table and the cakculation you perform using that vallue. 2points] Solve using calculation and the formulas from the book. At a minimum show the formula, then the formula with values, and your cakculation 4 You have been asked to evaluate shipping costs of your new product by air or by sea For this analysis disregard the time alue of money