For number one, you will divide 15.7 by 5. This is becuase all the strawberries are the same size and mass. This will give you 3.14 or choice C.
For number 2, you will divide 35.37 by three because there are 3 shirts for the same price. This will give you 11.79 or choice C.
For number 3, you will divide 1.28 by 16 since there are 16 of the same size cookies. This will give you 0.08 or choice B.