Been on this subject for almost 4 hrs and don't know what im doing wrong... The amount of calories consumed by customers at the Chinese buffet is normally distributed with mean 2618 and standard deviation 545. One randomly selected customer is observed to see how many calories X that customer consumes. Round all answers to 4 decimal places where possible.

a. What is the distribution of X? X ~ N( , )

b. Find the probability that the customer consumes less than 2229 calories.

c. What proportion of the customers consume over 2818 calories?

d. The Piggy award will given out to the 3% of customers who consume the most calories. What is the fewest number of calories a person must consume to receive the Piggy award?
calories. (Round to the nearest calorie)