Which of the systems below is equivalent to the given system?

0.01x - 0.05y = 0.1

0.4x + 0.3y = 0.9

1. 10x - 5y = 10 and 4x + 3y = 9

2. x - 5y = 10 and 4x + 3y = 9

3. x - 5y = 1 and 4x + 3y = 9

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Plot the location of - 9 and - 3 on the number line. Use mathematical symbols to write an inequality that compares - 9 and - 3. Explain how the number line can be used to show that your inequality is correct.

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