Answer:12
Explanation:
First, we need to find the total percentages:
45+28+17 = 90
90% of them like moves and 10% of them dont like movies, since we have 120 total, and 10% of them dont like it, we solve what is 10% of 120:
120total:100%
divide 10 on both sides=
12total:10%
So, in all, 12 students don't like any movies