Lysa wants to build a fence around her yard. She needs 160 pieces of wood. She has already purchased 40 pieces. Which equation represents how many more pieces of wood she needs to purchase?

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

Bring the fraction a/a-4 to a denominator of 16-a^2

How do i find the missing angle measure in a polygon