Solve for a
7a - 20 = 52m

Multiply −2x(6x^4−7x^2+x−5) express the answer in standard form. enter your answer in the box.

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply