The relation pairing the only one child to his or her mother

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

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m