Explain how place value could be used to find the difference between 4.23 into 2.75

Find all solutions for 2y - 4x =2 y = 2x + 1 site: socratic. org

The value of cos 30° is the same as which of the following?

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