At a certain university, 25% of students are in the business faculty. Of the students in the business faculty, 66% are males. However, only 52% of all students at the university are male.

a. What is the probability that a student selected at random in the university is a male in the business faculty?

b. What is the probability that a student selected at random in the university is male or is in the business faculty?

c. What percentage of males are in the business faculty?