You’re a utility company charges 13 cents per kilowatt hour of electricity. complete parts a& b.
a. the daily cost of keeping a 100 w lightbulb for 13 hours each day is?
b. the yearly savings of replacing 100 w lightbulb with a 20 w lightbulb is?

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