Answer: Yes, there are enough popcorn for eight 9- ounce bags.
Step-by-step explanation:
Since we have given that
From Machine A,
Amount of popcorn in 3 minutes = 12.75
Amount of popcorn in 1 minute is given by

Amount of popcorn in 10 minutes is given by

From Machine B,
Amount of popcorn in 4 minutes = 18 ounces
Amount of popcorn in 1 minute is given by

Amount of popcorn in 10 minutes is given by

Total amount of popcorn is given by

Now, there are eight 9-ounce bags means 72 ounces
Since 87.5 ounces is greater than 72 ounces .
So, there are enough for eight 9-ounce bags.