1.   Express 45,280,000 in scientific notation.
    A. 4.528 × 10-7 B. 45.28 × 106
    C. 4.528 × 106 D. 4.528 × 107
    Hint

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

  3.   Simplify
    A. k3 B. k-3
    C. D. k17
    Hint

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