The price of a holiday was decreased by 12% to £600. What was the price before the decrease? Give your answer to the nearest penny.

Having a hard time understanding this question (see attachment).

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

The formula to determine energy is e=1/2mv2? what is the formula solved for v?