Respuesta :

The answer would be D because each of the four books on the shelf weighs less than 3.3 pounds.
Your answer is D. This is because it has to go for all of them... it can't be w>2.3 because there is a 2.3 and if it is greater it can't be 2.3. It can't be w<2.4 because 3.2,2.5,and 2.7 are Greater than 2.4 NOT less than. Finally, it can't be w>3.2 because 2.5,2.7,and 2.3 are less than 3.2 NOT greater! 

D is W<3.3 which is true, this is because 2.5, 2.7, 2.3, and 3.2 ARE less than 3.3 Therefore, D is your answer!