Martina watched 18 movies that she thought were very good
Number of movies that are good = 18
She watched 45 movies over the whole year
Number of movies she watched over a year = 45
Percentage did she think were very good = Number of movies that are good/ Total number of movies x 100
So, Percentage did she think were very good is 40%
Answer : percentage did she think were very good is 40%