Kendra used 49 cubes to build the first layer of a rectangular prism. The side length of each cube was 1 inch. The finished prism had a total of 7 layers. What is the volume of Kendra's prism in cubic inches?

What is the smallest integer n such that n\sqrt{2} is greater than 20

Arecipe uses 2 cups of sugar to make 32 brownies. how many cups of sugar are needed to make 72 brownies?

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex