Cracking The SAT Premium

The scatterplot above   shows   the fuel    efficiency, in  miles   per gallon, of  a   variety of

vehicles    weighing    between 1.5 and 4   tons.   Based   on  the line    of  best    fit to  the data

represented,    which   of  the following   is  the closest to  the expected    miles   per gallon  of  a

vehicle that    weighs  3   tons?

A) 20

B) 24

C) 27

D) 28

5.