Ms. groves has trays of paint for students in her art class. each tray has 5 colors. one of the colors is purple. what fraction of the colors in 20 trays is purple?

Which expression is not a polynomial?

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x