Evaluate a -c : when a+20.9 and c=-12.8 urgent +more points and brainliest answer

In trapezoid klmn, kj=19.2 and jm=22.5. identify ln.

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

Which ahows the graph of the solution set of 6x+4y< 12