Answer:
No, she does not.
Step-by-step explanation:
Using the words here, we can create the expression [tex]20d + 7[/tex] where d is the number of days.
We can now substitute 15 in as d, to see how much this will cost.
[tex]20\cdot15 + 7\\\\300+7\\\\307[/tex]
So the total cost will be $307.
Since $307 is more than $250, she does not have enough money.
Hope this helped!