Greg washes cars on saturday at his dad car dealership. his dad pays him $50 plus $5 for each car that he washes. greg washes 11 cars last saturday. use function notation to write an equation that gives the total amount greg earns as a function of the number of cars he washes. use the equation to find how much he earn last saturday.

Step-by-step explanation:

Let x represent number of cars Greg washes and f(x) represent Greg's total income.

We have been that Greg's dad pays him $50 plus $5 for each car that he washes.

The earnings for washing x cars would be .

The total earnings for washing x cars would be .

Therefore, the function represents Greg's total income as a function of the number of cars he washes.

To find the Greg's total income from washing 11 cars, we will substitute in our function.

Therefore, Greg earned $105 last Saturday.

(-5,-28)

i graphed to on desmos.

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)