Can someone help me simplify these expressions

Solve -2(4y + 6) = 52. 5 -5 8 -8 and !

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π