If you look at the line it never stops. Y can be any number and X can be any number so X and y are elements of reels meaning your answer is a
I think it would be The first term indicates that the 14 girl scouts each sold 22 boxes of cookies per additional day of the fair. The second term indicates that the 14 girl scouts each sold 25 boxes of cookies on the first day of the fair.
A maybe? I don’t know honestly