I think the answer is d hope this helps
Answer:
$13.50
Step-by-step explanation:
Alissa will save $13.50 from the sale.
Answer:
The senior tickets are 9 dollars and 30 cents.
Step-by-step explanation:

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So, we have the following equation...

Remember
and
is the following...

Therefore, 
So, your final answer is
.
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<em>Glad to help!</em>
