Answer:
D. 12.50a + 9c + 25
Step-by-step explanation:
Assuming that the variables:
a = adults
c = children
Set the expression.
Adult tickets cost $12.50 (given): 12.50a
Child tickets cost $9 (given): 9c
"Other expenses" cost a flat sum of 25: +25
12.50a + 9c + 25 is your answer, or D).
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