I have a question about exponential functions I will submit a photo

The values are given as:
(a) Approximate the value of e^6 to 4 decimal places:
The value of
[tex]e^6=403.42879[/tex]The approximate value to 4 decimal places is 403.4288.
(b) Approximate the value of e^(-0.66) to 4 decimal places:
[tex]\text{The value of e}^{-0.66}=0.5168513344916[/tex]Approximated value to 4 decimal places is 0.5168..