What set of rotations would carry trapezoid abcd onto itself?

If x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

Azul has 4 green picks and no orange picks.you add orange picks so that there are 2 orange picks for every 1 green pick.how many picks are there now.