If the government decides to impose a price ceiling of $7, the result would be that 5 million cases would be exchanged.
A price ceiling will have no effect on goods supplied if it is not binding. A non-binding price ceiling is one that is above the equilibrium price.
The price ceiling of $7 is above the equilibrium price of $5 which means that it is non-binding.
This means that the units supplied will not change from the equilibrium quantity of 5 million cases.
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