Me! i really need ! combine like terms. y + 9 + 7(y + 3)

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

How are sas and sss used to show that two triangles are congruent?

Patty made a name tag in the shape of a parallelogram. reilly made a rectangular name tag with the same base and height. explain how the areas of the name tags compare.