Determine the length of the rectangle, knowing that the area is 30. Solve the problem using a 2 degree equation, please help me urgently

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?

Find solution of the linear equation y = 2/3x + 1/3