This is calculus work so if someone knows how to do calculus please send me the answer.

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

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?

Add. express your answer in simplest form. 12 9/10+2 2/3 = i need u guys to me find the answer to this question