Solve it by factorisation method

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square

Lana's family entered a 5-kilometer race lana's average step length is about 0.5 meter how many steps will she need to take the finish

What is the area of the wall surface of a room that is 16’ x 18’ with 9 ceilings?