Hi,

use your calculator to solve for x. round your answers to the nearest thousandth."

 x = 10^2.3   ||careful, always 'try' to visualize or 'estimate' answer 

 10^2.3 = 199.526

ln 9 = 2.197,  Yes.  Good work

log(15) = 1.176, Yes.  Good work 

 e^(-1.5) = 1/e^1.5 = 1/4.482 =  .223    || 1/e^1 = 1/(2.718) = .368  , for ex

  

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