PLZ HELP​

Solve the system of equations. y= 2x y= x^2 - 15

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

Choose the equation below that represents the line that passes through the point (2, 4) and has a slope of 3. a) y − 4 = 3(x − 2) b) y − 2 = 3(x − 4) c) y + 4 = 3(x + 2) d) y + 2 = 3(x + 4)