TANFIN91.4.028. The quantity demanded each month of Russo Espresso Makers is 250 when the unit price is $140. The quantity demanded each month is 1000 when the unit price is $110. The suppliers will market 750 espresso makers when the unit price is $60 or higher. At a unit price of $80, they are willing to market 2250 units. Both the supply and demand equations are known to be linear. (a) Find the demand equation. p: (b) Find the supply equation. p: (C) Find the equilibrium quantity and the equilibrium price. is