Aship, carrying freshwater to a desert island in the caribbean, has a horizontal cross-sectional area of 2850 m2 at the waterline. when unloaded, the ship rises 9.50 m higher in the sea. how much water was delivered?

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