Zack is purchasing a bag of apples. the cost of apples is proportional to the weight of the apples in pounds as shown on the graph 2.5 lb of apples will cost zack $1. 4 lb of apples will cost zack $10. 10 lb of apples will cost zack t $4. 1 lb of apples will cost zack $2.50.

Hello,

The graph below is the graph you may have forgotten to upload. This will help me understand the question better and to give you a great answer.

  A:  " 1 lb of apples will cost Zack $2.50. "  
___________________________________________  C:  " 4 lb of apples will cost Zack $10. "
Hope this helps

-Jurgen :D

Hey, can you post the problem?