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\"\"

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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 same signs is positive)

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\"\"

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Simplify the expression uisng order of operations (PEDMAS).

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Since there are no parentheses and powers, first operation is multiplication.

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\"\"                      (Multiply: \"\")

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Next operation is addition.

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\"\"                        (Add: 3 + 1 = 4)

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\"\"                         (Multiply numerator and denominator by 10)

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\"\"

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The value of the expression is 40.

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