Answer: 28 pounds
Step-by-step explanation: So, we know that you sell 50 bowls of French onion soup a day.
If each bowl has 9 ounces of onion in it ( Wow that's a lot of onion!)
Then what we are going to do is 9(50) = 450 So, you use 450 ounces of onions a day. Now there are 16 ounces in a pound, so we divide 450 by 16 and get about 28 pounds. So you would need to get around 28 pounds of sliced onions.