Answer:
i need to watch 50 more movies to earn a free movie
Explanation:
lets say you watch 5 movies,then you get 2(5)=10 points
if we watch m movies then we get 2m point total
we need 100 points
our equation is then 2m=100
divide 100 by 2
we get m=50
i need to see 50 more movies to earn a free movie
