HELP PLEASE! Math Rewind and Rescore Ice cream

Combined megan and kelly worked 60 hours. kelly worked twice as many hours as megan. how many hours did they each worked?

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

Aci is desired for the true average stray-load loss μ (watts) for a certain type of induction motor when the line current is held at 10 amps for a speed of 1500 rpm. assume that stray-load loss is normally distributed with σ = 2.3. (round your answers to two decimal places.)