Polynomials math question

The graph shows the rate at which paint is used to paint a wall.enter values to complete each statement below based on the graph.when 1 gallon of paint has been used, ( # ) square feet of the wall will be painted.the unit rate is ( # )square feet per gallon.

F(x)= 4x g(x) =x-1 what is f(x) divided by g(x)

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