Question

Katrina drinks 0.5 gallons of water per day. Which expression show how to fund the number of cups of water she drink in a week ?

Answer 1

There are 16 cups in a gallon and you would multiply 16 * 0.5 * 7(the number of days in a week) and you get

Answer 2

0.5 is half of a gallon.
So, we do 17 / 2 = 8.5
8.5 * 7 (number of days in a week) = 59.5
Katrina drinks 59.5 cups of water in a week.