The greatest number of adults who can chaperone
35-20 = 15
Answer:

Step-by-step explanation:
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I will also upload a graph which shows that both expressions are equal.
Answer:
9 hours
Step-by-step explanation:
If there's 4 people, they each need 1.5h So you multiply 1.5 by 6 and that's how you find how long it takes for 1 person.