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. which statements are true about the cost of the apples? select each correct answer. 1 lb of apples will cost zack $2.50. 4 lb of apples will cost zack $10. 2.5 lb of apples will cost zack $1. 10 lb of apples will cost zack t $4.