Solve for the unknowns . PLEASE HELP !!

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?