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

  2.   Simplify (18q3r)(2qr4).
    A. 36q4r5 B. 36q3r4
    C. 36qr D. 36q3r5
    Hint

  3.   Simplify
    A. 5t3u3v4 B.
    C. D.
    Hint

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

  5.   Express the result in scientific notation.
    A. 1.25 × 104 B. 1.25 × 10-4
    C. 1.25 × 1010 D. 1.25 × 10-10
    Hint



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