Answer:
Area of the shaded region= 
Step-by-step explanation:
Area of the shaded region= Area of the triangle- Area of the rectangle
Dimensions of the triangle:
Base= 40 inch
Height= 40 inch
Area of a triangle=

Area of the rectangle= Length*Width
Length=30 inch
Width=10 inch
Area:

Area of the shaded region= 
(93+67+78+44+123)/5=405/5=81 pizzas per day on average
C is your answer.
You need to substitute 9 with every x value in the equation.
So, 3(9)^2-7(9)+11
p(x)= 191