Answer:
The makeup artist worked for 3 hours.
Step-by-step explanation:
Giving the following information:
A makeup artist charges $40 to travel to a wedding, plus $20 per hour for the makeup she is doing at the wedding. The bride receives a bill for $100.
We need to structure the total cost formula:
f(x)= 40 + 20x
x= number of hours
Now, for $100:
100= 40 + 20x
60/20= x
3= x
The makeup artist worked for 3 hours.
