Answer: The economy box will hold 112 ounces.
Explanation:
Since we have given that
A regular box of cereal holds = 14 ounces
Let the dimesion of regular box be x .
so, Volume of regular box is given by

According to question, if the box is made by doubling all the dimensions of the regular sized box.
So, volume becomes

Hence, The economy box will hold 112 ounces.