Answer:
I would go with A beacuase if he has 42 and the costomers are bying three then it would have to be 42 divided by 3 But you would have to know how much your selling so if he has that then 14+14+14 is 42 so the n = 42 but it really isn't saying that each costomer is buying three its saying there buying 14 but 42 divied by three is 14 so that does make sense i would say A go eith A
Explanation:
Just A