Which solids have the same types of vertical cross sections through the base?

a rectangular prism and a cylinder
a rectangular prism and a cone
a cylinder and a cone
a cylinder and a pyramid

What is the average rate of change for this function for the interval from x=2 to x=4 ?

Which number produces a rationale number when multiplied by 1/5

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.