Answer:

Step-by-step explanation:
step 1
Find the area of the circle with a diameter of 9 units
we know that
The area of a circle is equal to

we have
----> the radius is half the diameter
substitute


step 2
Find the area of a square with a side length of 8 units
we know that
The area of the square is

where
b is the length side of the square
we have

substitute

step 3
Equate the areas

solve for 

C. The trend line describes the pattern in the data if one exists. :)
First you would have to find the cost for 1 medium pizza.
10.50/3=3.5
It costs $3.50 for 1 medium pizza
Next, you would have to multiply 3.5 times 10.
3.5*10=35
It costs $35.00 for 10 medium pizza's.
75.00
X .20
Equals 15.00
75.00-15.00= $60.00
Answer:
30
Step-by-step explanation: