julia and her friends went to a restaurant for a buffet dinner. How many people were there is they paid a total of $378 for their dinner.
Buffet dinner promotion is 1 dines free for every 5 people, $18 per person
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4 people do not have to pay bc of the promotion and the other 17 have to pay
ldoshani:
Shoudn't it be 25 pple, since 21 paid for the meal which came up to $378, and then for every five of those people one ate free so 21 people paid and 4 ate free
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