1) Let's calculate those expressions that have the Irrational Number "e". Note that "e" is approximately 2.71 but we won't round it off till we have finished. So we can write out:
[tex]225e^{0.2}=225e^{\frac{2}{10}}=225\cdot\: 1.22140\approx274.816[/tex]Note that we could have written that as root. But for the sake of convenience, we did this way.
2) For the second expression we can solve this way:
[tex]e^{-0.15}=(\frac{1}{e})^{0.15}=0.8607..\approx0.861[/tex]Notice that negative exponents denote a reciprocal base raised to a positive exponent.
Hence, that is the answer
