1.   Express 7-3 using positive exponents.
    A. B. (-7)3
    C. D.
    Hint

  2.   Write using negative exponents.
    A. -24 B. 2-3
    C. 2-4 D. -2-4
    Hint

  3.   Rewrite without using a fraction bar.
    A. a2b2c-3d-1 B. a2b2 - c3d
    C. a2b2c-3d D. a2b2(-c3d)
    Hint

  4.   Evaluate the expression 5n4m-2 if m = 6 and n = 3.
    A. -20 B. -5
    C. D.
    Hint

  5.   Write the expression m-7 using a positive exponent.
    A. m7 B.
    C. -m7 D.
    Hint



Glencoe
The McGraw-Hill Companies