Answer:
4 adults and 10 children
Explanation:
7, 14, 21, 28
4, 8, 12, 16, 20, 24, 28, 32, 36, 40
28 plus 40 is 68$
count the numbers that add up to the cost and you get 14 and the 7 repeat to get 28 and 4 repeat to get 40
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