Two square pyramids have the same volume. for the first pyramid, the side length of the base is 20 in. and the height is 21 in. the second pyramid has a height of 84 in. what is the side length of the base of the second pyramid?

Hassan bought a package of tofu. the temperature of the tofu was 14° celsius when hassan put the package into the freezer. he left the tofu in the freezer until it reached –19° celsius. which expressions explain how to find the change in temperature, in degrees celsius, of the package of tofu? select three that apply.