Can you simplify h^1.5 x h^2.5 ? (Is it possible to simplify h to the power of 1.5 times h to the power of 2.5) :SS

In the image, point a marks the center of the circle. which two lengths must form a ratio of 1 : 2? (options are in the images since thought they were harmful phrases)

Which graph represents the following piecewise defined function?

One integer is 8 times another. if the product is 72, then find the integers