4(m-n)^2+4m(m-n)

Simplify as much as possible. Someone plz answer this.

An animal shelter has 21 puppies. if the puppies are 28% of the total dogs and cat population how many dogs and cats are in the animal shelter

The radius of the base of a cylinder is 10 centimeters, and its height is 20 centimeters. a cone is used to fill the cylinder with water. the radius of the cone's base is 5 centimeters, and its height is 10 centimeters.

Write a story that matches with the expression 42x-5 pls hurry