Answer: The formula that will help in find the price per gram for each brand is given by

Explanation:
Let x be the price of carton of ice cream
Let y be the number of grams in carton
Let z be the price per gram.
Since we know that
Price per gram × Number of grams in carton = Price of carton of ice cream

So, the formula that will help in find the price per gram for each brand is given by
