Answer:
She doesn't have enough money to buy 11 movies.
Explanation:
18.50=5.00+1.25x
If x = 11 then $1.25 multiplied by 11 is $13.75 plus the $5.00 per month would then be 18.75
She is 25 cents off so she can't rent 11 movies, it would have to be 10 movies.
(I hope this has cleared some stuff up. I hope you can understand this!)