I NEED HELP AND I WILL MARK BRAINLIST IF YOU ARE CORRECT WITH ALL OF THEM AND 100 POINTS 1)The revenue R you receive for selling pizza slices depends on the price p that you charge per slice and is modeled by R = -16p2 + 80p + 5. What is the domain of this function? A) p ≥ 0 B) all real numbers C) 0 ≤ p ≤ 5.06 D) 2.5 ≤ p ≤ 105 2) The barber’s profit each week depends on his charge c per haircut. It is modeled by p = -200c2 + 2400c – 4700. What is the reasonable domain of this function, given this situation? A) c ≥ 0 B) all real numbers C) 0 ≤ c ≤ 2.5 D) 2.5 ≤ c ≤ 9.5 3) What is the range of f(x) = -x2 + 4, if the domain is {2,0,1}? A) {0,3,5} B) {0,4,3} C) {0,4,5} D) {8,4,3} 4) Determine the range of the function. y = -2x2 + 3 A) all real numbers B) all integers less than or equal to 3 C) all integers greater than or equal to 3 D) all real numbers less than or equal to 3 5) What is the domain of the quadratic function given by f(x) = 2x2 + 2x - 4? A) [0, +∞) B) all real numbers C) all negative real numbers D) all positive real numbers