How to tell graph represent equation.

Mary had at least an 80% on her test write an inequality to represent this situation

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

Match each statement with its corresponding value for the system below: y = -2(3)x and y = 9x - 2 1. the number of points of intersection. -2 2. the x-coordinate of the solution. 1 3. the y-coordinate of the solution. 0