The answer for this problem: Option C.
Answer:
The adult tickets cost $9 each. The child tickets cost $5 each.
X = $9 and Y = $5
Step-by-step explanation:
$9 x 6 = $54
$5 x 2 = $10
Add them and you get $64.
For the first one, do the same.
$9 x 3 = $27
$5 x 4 = $20
Add them and you get $47
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Subtract sides 4d


Thus the correct answer is Option three.
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C = b - a
explanation:
you just need to subtract a in this equation.