Difference means subtract so we can reduce the choices right away to first and third choices. of the only the first is the difference of squares, namely x² - 4²
Step-by-step explanation:

Answer:
Option D is the correct answer
Step-by-step explanation:
D. Yes, because it passes the vertical line test.
Answer:
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Step-by-step explanation:
1/4 mile per 22.5 seconds