7. Suppose you earn $15 for each car you wash. Which function describes the relationship

between your total earnings Eand the number of cars you wash, c?

E (c) = 15c

Step-by-step explanation:

If I earn $15 for each car i wash and my total earnings are E then we have to form a function which describes this relationship.

My earning for one car wash = $15

Similarly my earnings for c car washes = $15*c

This total earning is equal to E so function representing the equation will be E (c) = 15c

Answer is E (c) = 15c which describes the relashionship of my earnings to the number of cars i wash.