katrina drinks 0.5 gallons of water per day which expression shows how to find the number of cups of water she drinks in a week

Answer 1

(0.5 gal/day) * (7 days/week) * (16 cups/gal)

(0.5) * (7) * (16) cups/week Units cancel to give cups/week

(7) * (8) Half of 16 is 8

56 cups/week

Answer 2

Qty of water drinks in a day, q=0.5 gallons

No of days in a week = 7

1 cup= 0.0625 gallons

0.5 gallons=0.5/0.0625=8 cups

Total cups in a week = 7 x 8 =56 cups

The expression is

(q/0.0625) x 7