Greg is opening a car wash. he estimates his cost equation as c = 9000 + 0.09x and his revenue equation as r = 1.85x, where x is the number of cars washed in a six-month period. find the number of cars that must be washed in a six-month period for greg to make a profit.

Aclothing designer is selecting models to walk the runway for her fashion show. the clothes she designed require each model’s height to be no more than y inches from 5 feet 10 inches, or 70 inches. which graph could be used to determine the possible variance levels that would result in an acceptable height, x?