In his free time, Gary spends 7 hours per week on the Internet and 10 hours per week playing video games. If Gary has five hours
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Answer:
You can write this as (-infinity, 7) if you aren't able to use the infinity symbol.
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Explanation:
Think of x < 7 as writing
So x is between negative infinity and 7, excluding both endpoints.
To write in interval notation, we write
The curved parenthesis tell us to exclude the endpoint.