Hi, i need help with this question :).

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.

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)