What is the answer ? Help pls

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

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.

What function has a range {yly< 5}? question on picture above^