After substituting, what is the first step when evaluating StartFraction 4 y + 9 over 7 EndFraction when y = 8?

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.

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).