Lilly and her sister Sandy work in a beauty salon. There wage agreements are:
Lilly’s Agreement: Basic wage $800 plus $5 for each customer served.
Sandy’s Agreement: 40 hr. work week at a basic rate of $22.50
a) Determine Lilly’s weekly wage if she served 49 customers in the week.
b) Determine Sandy’s wage.
c) How much more did Lilly make than Sandy in that week?
d) In a particular week, Lilly made $975. Find the number of customers she served.