please help me with #9
Answer: [tex]\bold{f\bigg(\dfrac{1}{2}x\bigg)}[/tex]
Step-by-step explanation:
x represents the price of the swimsuit. If the price is cut in half, then x is replaced by (1/2)x. So the profit will be [tex]f\bigg(\dfrac{1}{2}x\bigg)[/tex]