Answer:
It's the 2nd one
Step-by-step explanation:
The income will always depend on how many customers you get. so the number of customers is independent and the income is dependent.
Great! Now you've narrowed it down to 2 answers. There are 2 formulas f(x) = 20x and f(x) = 20 + x
The question tells us that the hairstylist charges $20 per haircut. If we assume x is the number of customers, then f(x) = 20x is the only one that works.
I hope my answer isn't a joke