Answer
p v (q → ~r)
Work Step by Step
p: I like the teacher.
q: The course is interesting.
r: I miss the class.
If I like the teacher or if the course is interesting, then I do not miss class.
The symbolic representation is:
(q → ~r) : If the course is interesting, then I do not miss class.
p v (q → ~r): If I like the teacher, or if the course is interesting, then I do not miss class.