Answer:
7 friends
Explanation:
$78 - 8 = $70
$70 -:- 9 = 7.7777
She can take 7 friends
She can take 8 friends.
9×8=$72. 9 is the amount for 1 per person. 8 represents how many people she can take. over 8 friends is too much money for her. so 8 people is perfect.
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