A rectangular box is to have a square base and a volume of 30 ft3. The material for the base costs 26 cents/ft2, the material for the top costs 16 cents/ft2, and the material for the sides costs 18 cents/ft . If x denotes the length of one side of the base (In feet), find a function in the variable x giving the total cost of materials used in constructing the box in cents. Total Cost, as a function of X = Determine the domain of the total cost function. Enter your answer using interval notation. Domain of total cost function =