If the ratio to baby ducklings to mama ducks is 7 to 1 then the constant of proportionality is 7. So you take the amount of mama ducks and multiply that by 7 you get your answer.
So you have 328 lemons at first right? And you gave 246 to your neighbor right? That means you have to takeaway 246 from 328 right? So 328-246 is 82 ok? So you have 82 lemons left
