A college radio station surveyed 674 incoming freshmen to see how many like jazz music, how many like rock music, and how many like rap music.The Venn diagram below shows

the results. (Each number gives the number of freshmen who fall into that Venn diagram category.) (a) How many of the freshmen like rap but don't like jazz? (b) How many of the freshmen like neither rock nor rap? (c) How many of the freshmen like exactly one of the three types of music?