Can someone pls help? can you add steps too

The appalachian trail is a hiking trail that passes through the appalachian mountains. three members of a teen hiking group hiked a section of the trail. the hikers stopped at a rest area and equally shared 3 4 gallon of water. how much water did each person get?

Me because some of question i don’t understand

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account