Assume the average child weighs 40 pounds at age 3. Assume the average child weighs 70 pounds at age 6. What is the average number of
pounds the child gains per year between ages 3 and 6?

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Ageologist had two rocks on a scale that weighed 4.6 kilograms together.rock a was 0.5 of the total weight.how much did rock a weigh?

If y varies directly as x2 and y=6 when x=6, find the constant of variation.