Please help understand how to do b and c

The percent of fat calories that a person in America consumes each day is normally distributed with a mean of about 36 and a standard deviation of 9. Suppose that one individual is randomly chosen. Let X=percent of fat calories. Round all answers to 4 decimal places if where possible a. What is the distribution of X? X - N( 36 9 b. Find the probability that a randomly selected fat calorie percent is more than 34. c. Find the minimum number for the upper quarter of percent of fat calories