The value of y varies directly as the square of x and y=27 when x=9. Find the equation that represents this relationship. Report the proportionality constant as a reduced fraction when necessary.

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.

Which of the following is missing in the explicit formula for the compound interest geometric sequence below?

3x = 729 solve for x plz . it's urgent. will mark