Roger gets $40 per day as wages and $4.50 as commission for every pair of shoes he sells in a day. His daily earnings goal is $112. Write an equation to determine how many pairs of shoes, p, Roger must sell in a day to meet his daily earnings goal.
112 = 4.5p + 40 subtract 40 from both sides 72 = 4.5p divide by 4.5 on both sides to get 'p' by itself 16 = p this means that Roger must make 16 pairs of shoes in order to meet his daily earnings goal of $112
