Final answer:
To model the cost of services at the hair salon, use the equation Total Cost = Fixed Rate + Additional Services. The function to model the cost of services is Total Cost = $40.00. If you also get a shampoo, highlight, and blow dry, the total cost would still be $40.00.
Step-by-step explanation:
To model the cost of services at the hair salon, we can use the equation:
Total Cost = Fixed Rate + Additional Services
Given that the fixed rate for a haircut is $25.00 and the additional charge for any other services is $15.00, the equation becomes:
Total Cost = $25.00 + $15.00
Therefore, the function to model the cost of services at the hair salon is:
Total Cost = $40.00
If you also get a shampoo, highlight, and blow dry, the total cost would still be $40.00, as the additional charge for any other services remains the same. So the total cost for these services would be $40.00.