Today evrything at a store is on sale. The store offers a 20% discount. The regular price of an item is x dollars. What is the discount price in dollars?

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

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.

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?