There is a total of 25 bicycles. if the ratio of gray bicycles to black bicycles is 6 to 9, how many of them are black?

Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)