An automobile and a truck start from rest simultaneously with the automobile some distance behind the truck. The truck as a constant acceleration of 2 m/s2 and the automobile has an acceleration of 3 m/s2. The automobile overtakes the truck after the truck has moved 75 m. a)How long does it take the automobile to overtake the truck

An electric power distributor charges residential customers $0.10 per kilowatt-hour (kwh). the company advertises that "green power" is available in 150 kwh blocks for an additional $4 per month. (green power is generated from solar, wind power, and methane sources.) if a certain customer uses an average of 391 kwh per month and commits to one monthly 150 kwh block of green power, what is her annual power bill