1.   Simplify x3y0z-2.
    A. B. -x3yz2
    C. D. 0
    Hint

  2.   Simplify Assume the denominator is not equal to zero.
    A. B.
    C. D.
    Hint

  3.   Simplify . Assume the denominator is not equal to zero.
    A. B.
    C. D.
    Hint

  4.   Express 47.5 × 10-5 in scientific notation.
    A. 4.75 × 10-4 B. 475 × 10-6
    C. 0.475 × 10-3 D. 4.75 × 10-6
    Hint

  5.   Express 2.38 × 106 in standard notation.
    A. 0.000000238 B. 238,000
    C. 2,380,000 D. 0.00000238
    Hint



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