After a 90% reduction, you purchase a new sofa on sale for $60

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

Atorch and a battery cost 2.50 altogether.the torch costs 1.50 more than the battery.what fraction of the total price is the torch? give your answer in its simplest form.

Apyramid fits exactly inside a cube. the cube and the pyramid share the same square base, and they are both exactly the same height. the volume of the cube is 66 cubic inches. what is the volume of the pyramid? explain your answer. answer asap