Calculate the cost of 4 liters of gasoline if 10 Liters of gasoline cost $8.20 (using proportional relationship). A . $3.28
B. $4.20
C. $8.20
D.$10

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

The graph below shows the height of a projectile t seconds after it is launched. if acceleration due to gravity is -16 ft/s2, which equation models the height of the projectile correctly?

Which of the following contains a variable?