Is f(x)=sqrt{x}+3x an exponential function?

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Using inductive reasoning, what are the next two number in this set? 2,3/2,4/3,5/4,