1.   Convert log5 145 to a natural logarithm.
    A. B. ln 5 - ln 145
    C. D. ln 145 - ln 5
    Hint

  2.   Solve the equation 34x = 8x - 5 by using natural logarithms.
    A. -4.4912 B. -3.4271
    C. -4.3150 D. -2.9412
    Hint

  3.   Solve 23x = 5x + 2 by using natural logarithms.
    A. 0.8356 B. 3.4243
    C. 0.0872 D. 6.8486
    Hint

  4.   Solve -11.4lnx = 9.5
    A. 0.3012 B. 2.3010
    C. 0.4346 D. 0.8208
    Hint

  5.   Solve 53x = 8x - 2 by using natural logarithms.
    A. 0.8985 B. -1.5129
    C. -0.6021 D. 1.5129
    Hint