Solve for r V=pir^2h/3

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?

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.