Harris is building a deck around his pool. His contractor charges $525 for labor plus an additional $4.75 per square foot for materials. Which equation can be used to determine the cost, in dollars, for a deck with an area of x square feet? A) f(x) = 529.75x B) f(x) = 4.75x + 525 C) f(x) = 525x + 4.75 D) f(x) = 4.75x + 525x
