Your club is baking vanilla and chocolate cakes for a bake sale. They need at most 20 cakes. You cannot have more than 11 chocolate cakes. Write and graph a system of inequalities to model this system.

The accompanying data represent the miles per gallon of a random sample of cars with a three-cylinder, 1.0 liter engine. (a) compute the z-score corresponding to the individual who obtained 42.342.3 miles per gallon. interpret this result.