What is the surface area of the box 12in 4in 3in

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.

Ineed to know the answer to this algebra question.

Graph y = -|x| + 2. click on the graph until the correct one appears.