Answer:
44 gallons
Step-by-step explanation:
3960/3=1320
Each person used 1320 in one month
1320/30=44
Amount of person used / 30 days = gallons used each day
Tip of $1.60
The total is $9.60
(20% × $8) + $8
$1.60 + $8
$9.60
food 100
favors 50
total 250