Determine the eccentricity of the ellipse given by 9x^2+16y^2-72x+64y-368=0

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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?