Answer:
cab fares will be higher.
Step-by-step explanation:
The supply of cabs would fall as a result of the limit. The fall in supply would lead to a rightward shift of the demand curve for cabs.
As a result, equilibrium price (cab fares) would increase and equilibrium quantity would fall.
subway is a substitute for cabs
Due to the increase in the price of cabs, there would be an increase in the demand for subway. This would lead to a rise in equilibrium price and quantity