There's 40 students on the team 22 are girl what percent are boys

Find two rational expressions that have the difference of 2-n/n-4

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?