\"\"

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The expression is \"\".

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\"\"                 (Substitute a = 3, b = 0.3, c = \"\" and d = \"\")

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\"\"                        (Product of different signs is negative)

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Write the expression as division problem.

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\"\" \ \ \"\"

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Simplify the expression uisng order of operations (PEDMAS).

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First operation is evalauating the expression within the parentheses.

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

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Next operation is division.

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\"\"                                 (Divide: \"\")      \"\"

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The value of the expression is 6.