The weekly demand for mini pizzas in a small town is given by Q_D= 2250 - 200P - 200P_R- 0.5M where Q_Dis the quantity of mini pizzas demanded per week, P is the price of a mini pizza, P_Ris the price of a related product, and M is the average monthly income of consumers.

The weekly supply of mini pizzas is given by Q_S= - 400 + 200P where Q_Sis the quantity of mini pizzas supplied per week.

Currently, the price of the related product, P_Ris $2 and the average consumer income, M is $100.

What is the equilibrium price?