Can someone to help me please!

g. The annual salaries of employees in a large company are approximately normally distributed with a mean of E40,000 and a standard deviation of $20,000. a) What percent of people earn less than E30,000? b) What percent of people earn between $35,000 and E45,000? c) What percent of people earn more than E50,000? It is also desirable to support your findings by producing a brief evaluation report on the use of probability theory in hashing and load balancing