Solve the system of equations - 4x + 4y = -4 and - 4x + 2y = 16 by combining the equations.

The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?

Adesigner charges a one time fee of $200 plus $40 an hour for each project. write an expression to represent how much money the designer will make for a project

To decrease an amount by 16% what single multiplier would you use