Demand: $Q _ { d } = 900 - 60 P$ Supply: $Q _ { s } = - 200 + 50 \mathrm { P }$
-Let supply remain constant; an increase in income causes consumers to be willing and able to buy 220 more units at each price than they were previously. The new equilibrium price and quantity are

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Demand: $Q _ { d } = 900 - 60 P$ Supply: $Q _ { s } = - 200 + 50 \mathrm { P }$
-Let supply remain constant; an increase in income causes consumers to be willing and able to buy 220 more units at each price than they were previously. The new equilibrium price and quantity are

Demand Qd=900−60PQ _ { d } = 900 - 60 PQd​=900−60P

Demand $Q _ { d } = 900 - 60 P$