Answer:
1. 25 2. 100 gal 3. I have washed my hands 7 times today, which means that I used 35 gal 4. 160 gal 5. you already answered
Explanation:
1. 25 gallons
2. 100 gallons
3. 15 gallons if you washed your hands three times today
5. 160 gallons
7. 0.3%
