Let f(x) = x-4 and g(x) = (x-4)^3 find the sum of the area enclosed by the graphs
Of F and g between x=3 and x=5

Ahmed plans to add a rectangular sunroom to his house. the sunroom will have a length of 14 feet and a width of 10 feet, and the construction will cost $40 per square foot. how much more would the sunroom cost if it’s width were increased to 12 feet?