Answer:
Step-by-step explanation:
What we know:
There are 10 students who want to attend the cook off.
$25 = 1 ticket
$80 = transportation cost
$11 = 1 box of cookies
25 x 10 = 250 (total cost of tickets)
250 + 80 = 330 (total costs of tickets + transportation)
330 ÷ 10 = 33 (total amount each student must contribute)
33 ÷ 11 = 3 (total boxes of cookies each student must sell)
So your answer is 3.
I hope this helps!
Cheers, July.