Please anyone help me on this

Carter drank 15.75 gallons of water in 4 weeks. he drank the same amount of water each day.a. estimate how many gallons he drank in one day.b. estimate how many gallons he drank in one week.c. about how many days altogether will it take him to drink 20 gallons?

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

What is the greater volume 72 quarts or 23 gallons