The volume of a cone varies jointly as the square of its radius and its height. If the volume of a cone is 18pi cubic inches when the radius is 3 inches and the height is 6 inches, find the volume of a cone when the radius is 4 inches and the height is 9 inches.

Evaluate the expression for the given value of the variable 7a - 4a for a =8

What is the solution of log2  (3x  -  7)  =  3? 4 5

Amira is painting a rectangular banner 2 1/4 yards wide. the banner will have a blue background. amira has enough paint to cover 1 1/2 square yards of the wall. the school colors are blue and yellow, so amira wants to add yellow rectangles on the left and right sides of the blue rectangle. the yellow rectangles will each be 3/4 yards wide and the same height as the blue rectangle. what will be the total area of the two yellow rectangles?