With this one problem

it may be easy for so if you have time just look at the question and !

Please rearrange your data, row by row, in increasing order by # of customers.

Next, plot all of the given points.  For example, plot (10,13) and (15,21) and the other points. 

Draw a regression line through your matrix of points.  (Have you done this before?)

Does your regression line have a negative, zero or positive slope?  Knowing the answer to this will help you to choose the correct statements.  

Which statements seem correct to you?

8640

Step-by-step explanation: 60 square feet would be 8640.