Pizzas are circles. Area of circles is (pi)r^2.
Then find the cost per in.^2
Smallest cost per in.^2 is better buy.
11 sheets of paper
If u divide 22 by 2 u get 11
1. y = -4 - 3x
7x + 4(-4 - 3x) = -21
7x - 16 - 12x = -21
-5x = -5
x = 1
y = -4 - 3= -7
2. y = 6
-8x + 42 = -6
48 = 8x
x = 6
Draw a circle then put a point in the center and draw a line connecting it to the center. That will be the ducks path. It's called the radius