Which rule should be applied to reflect f(x) = x^3 over the x axis? a. substitute -x for x and simplify f(-x) b. multiply f(x) by -1 c. switch the variables x and y in the equation d. multiply f(y) by -1

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.