FInd the Angle of X Please!

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 square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

On a piece of paper graft y+2> -3x-3 then determine which answer matches the graph you drew