PART C - bonus questions +3 marks 1. Graph the system x = 2y and -x-y+ 3 = 0 for all values of x from x = -3 to x = 3 2. Tarfex Tech intended to sell a new product in order to keep up with customer demands. The product was to be sold to consumers at $620, creating a contribution margin of $150 per unit. They spent $9800 on advertising and were able to sell 1,200 units on the first day. Determine the resulting profit. 3.) A loan of $10 000.00 is to be repaid in four equal payments due in three months, six months, nine months, and one year respectively after the date of the loan. Calculate the size of the equal payments if interest is 8.5%.