How do I simplify 9rw^4/2r^3w^5 using only positive exponents

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

The volume of a box varies directly with its length if a box in the group has a length of 30inches and k=24 what is its volume

Ineed with 8,9 and 10 love ya guysss