What are the side lengths of square 4 and square 5 in terms of a and b? Do the two squares have the same area? Please hurry

Hurry and answer this! circle x with a radius of 6 units and circle y with a radius of 2 units are shown which steps would prove the circles similar? translate the circles so they share a common center point, and dilate circle y by a scale factor of 4. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 4. translate the circles so they share a common center point, and dilate circle y by a scale factor of 3. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 3

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall