For the shampoo:
Company A charges $5 per ounce bottle + $5 handling fee.
Company B charges $2 per ounce bottle + $23 handling fee.
Let C represent the total cost for the shampoo and x represent the number of bottles of shampoo then you can express the total cost for both companies as equations:
![\begin{gathered} C_A=5x+5 \\ C_B=8x+23 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/64bjmndmi6y0fo8oc4mvk86polpca7at5p.png)
For the hairdresser to justify using the shampoo of company C, the cost must be less than for company A, so that:
[tex]\begin{gathered} C_BNow