1.   Express 0.091 in scientific notation.
    A. 9.1 × 102 B. 9.1 × 101
    C. 9.1 × 10-1 D. 9.1 × 10-2
    Hint

  2.   What is the degree of 42x5y2z?
    A. 8 B. 7
    C. 5 D. 2
    Hint

  3.   Simplify (-3a5b3)4.
    A. 81a20b12 B. -81a9b12
    C. -12a9b7 D. -12a20b12
    Hint

  4.   Simplify
    A. B. 27x3ny6
    C. D.
    Hint

  5.   Express the result in scientific notation. (3 × 10-3)(2 × 109)
    A. 3 × 1012 B. 3 × 106
    C. 6 × 106 D. 6 × 1012
    Hint



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