Final answer:
To find the percentage of movies Omar rated as very good, divide the number of movies he thought were very good by the total number of movies he watched and multiply by 100. Omar rated 67.5% of the movies he watched as very good.
Step-by-step explanation:
To find the percentage of movies that Omar rated as very good, divide the number of movies he thought were very good (54) by the total number of movies he watched (80) and then multiply by 100.
Percentage of movies rated as very good = (54 / 80) x 100 = 67.5%
So, Omar rated 67.5% of the movies he watched as very good.