Which equation is equivalent to the given equation? -12x-2(x+9)=5(x+4) A. -2 B. -⅓ C. 5 D. 13/19

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).

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.