Pls help I will give 50 points for ur help

You’re repairing a large rectangular aquarium. the final step is to cover the glass with a protective film. the front and back of the aquarium measure 4 meters by 2 meters, and the sides of the aquarium measure 3 meters by 2 meters. how many square meters of protective film do you need? ( )

It says factor each expression 49x-28?

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28