i still need help with question 7 and 6

7.A campus radio station surveyed 500 students to determine the types of music they like. The survey revealed that 200 like rock, 165 like country, and 118 like jazz. Moreover, 29 like rock and country, 22 like rock and jazz, 27 like country and jazz, and 11 like all three types of music. What is the probability that a randomly selected student likes country but not rock?

a) 0.2400

b) 0.2620

c) 0.3300

d) 0.2980

e) 0.2720

6. A campus radio station surveyed 228 students to determine the types of music they like. The survey revealed that 91 like rock only, 108 like country only and 16 like both of these types of music. What is the probability that a randomly selected student likes country but not rock?

a) 0.5439

b) 0.6765

c) 0.5094

d) 0.4737

e) 0.0702