85 points! Look at the pictures below. They all have to do with least common denominators.

In a school 2/3 of the students study a language of those who study a language 2/5 study french

The tile along the edge of a triangular community pool needs to be replaced? ?

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