For which function is the average rate of change over the interval one less than or equal to X less than or equal to five at greater than the average rate of change over the same interval for the function g(x)=1.8x^2

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet