Answer:
$16,800
Step-by-step explanation:
You would do 21,000×0.20, which equals 4,200.
Since 4,200 equals 20% of 21,000, then you would do 21,000-4,200 which equals 16,800. So the car is worth $16,800 dollars when she bought it.
-7x^2 + 3x + 5
-3x^2 + x + 5 - 4x^2 + 2x
114
hope this helps!
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Answer: A. 724