Answer:
12 ounces soup
Explanation:
Mario is making dinner for 9 people.
Mario buys 6 containers of soup of 18 ounces.
Total amount of soup he buys = 18 × 6 = 108 ounces
All 9 people gets the same amount of soup so divide 108 ounces by 9
= 108 ÷ 9 = 12 ounces
12 ounces soup will each person get.