The hair care salon charges a stylist $30 per day to rent a station at the salon. rhonda, a stylist,
makes $10.50 on each haircut. write an equation and solve to her decide how many haircuts
she must give in one day to make $138 after paying rent for her station.

138=10.50x-30

Rearrange the formula to solve for x

x= (138-30)/10.50

Solve for x

x= 10.29 haircuts

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.