Its A i had the same one. Hope it helps.
What we have here in the picture is a graph of a segment. The goal is to find the segment's length, which we can do by using the distance formula:

Note that the distance between two points is equal to the length of the line segment that joins them.
So now we already have answers for two of the boxes.
The difference in the x-coordinates gives us the horizontal distance between the two points, while the difference in the y-coordinates gives us the vertical distance between the points.
So, the other two boxes should contain:
The local library lends an average books per day = 68.24
We know there are 7 days in a week
To find the the average number of books lent to readers in a week, we multiply the number of days in a week by average number of books per day.
let x be the average number of books per week
x= 68.24 * 7
x= 477.68
The local library lends an average of 477.68 books to readers every week.