Combine like terms , pls help :)

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

Which statement about perfect cubes is true

Twenty points. 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