\"\"

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The inequality is \"\"

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\"\"                              (Add: \"\")

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Apply subtraction property of inequality: \"\".

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\"\"              (Subtract 20 from each side)

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\"\"                        (Apply additive inverse property: \"\")

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\"\"                              (Apply additive identity property: \"\")

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\"\"                                      (Subtract: \"\")\"\"

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The solution set is \"\".

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Graph the solution set on a number line.\"number

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Note: The point indicated with closed circle is included in the solution set.\"\"

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Check:

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To check, substitute a number greater than or equal to 10 in inequality.

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\"\"                     (Substitute \"\")

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\"\"                                   (Add: \"\" )

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The inequality is true. \"\"

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The graph of \"\" is

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\"number

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The inequality solution set is \"\".