he estimated monthly demand function for oranges is Q = 100 - 4P + 2Pa, where P is the price of oranges and Pa is the price of a related good. The estimated supply function is Q = 10 (perfectly inelastic). If the price of the related good, Pa, increases, what happens to the equilibrium P and Q of oranges? Group of answer choices The equilibrium P will increase but equilibrium Q remains the same. Both equilibrium P and Q will increase. The equilibrium P will decrease but equilibrium Q will increase. The equilibrium P will decrease but equilibrium Q remains the same