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8-119.

Evaluate each of the following expressions for . Leave your answers as fractions. Show your work.

  1. Substitute 10 for the variable.

    Use the order of operations:

    Find the common denominator.

  1. Substitute 10 for the variable.

    Use the order of operations to evaluate the expression below.

    Simplify.

  1. Follow the same steps as parts (a) and (b).