Question #2 Erica will have to work for 14 hours in order to buy her sneakers. How to solve: You subtract $31 from $150 which equals to $119 You multiply 8.50 (which is the amount of money she gets paid every hour) by the answers they gave you. 8.50 multiplied by 14 is 199 Erica had to work 14 hours to make $199