A proportional relationship is shown below. Number of pizzas (n) Cost, in dollars (C)
3 24
5 40
7 56

Write an equation that represents the relationship between C and n.

Explain what this equation means in terms of the cost of the pizzas.

Pranza plotted point a in the coordinate plane below.

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2

Solve this 364x-64x=300x and 12(x2–x–1)+13(x2–x–1)=25(x2–x–1)