Jackson sells top-of-the-line programmable sewing machines for singer sewing machine company for every sewing machine he sells he makes a 9% commission he sells a sewing machine for $1,500 a) how much is his commission b) jackson wants to purchase a new stove for his kitchen that cost $799 with a sales tax of 7.5% how many 1500 sewing machines must he sell in order to purchase the stove using the money he earned in commission