Go here for the math:
Probability of a Random Variable in the Normal Distribution
Press P(X>Z) and then enter 1.4 where it tells you to and press Calculate Normal Distribution Probability.
Also, you can use Excel: =1-NORMDIST(1.4,0,1,TRUE)
We do 1 - because that covers the area of curve from the far left region all the way up to your z-score. So you want everything after that.
Following that logic for e, your answer is 1 - P(Z<k)
Read up more on Z-scores for the business sense of things.