The quantity demanded x each month of Russo Espresso Makers is 250 when the unit price p is $180; the quantity demanded each month is 500 when the unit price is $170. The suppliers will market 750 espresso makers if the unit price is $80. At a unit price of $110, they are willing to market 3000 units. Both the demand and supply 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. equilibrium quantity units equilibrium price $