Does anyone know the answer to this?? thank you! :)

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

Jim had 3,067.48 in his checking account he wrote a check to pay for two airplane tickets. his account now has 1,845.24.

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your