Use the Following Demand and Supply Functions: Demand $Q _ { d } = 900 - 60 p$

Multiple Choice

Use the following demand and supply functions: Demand: $Q _ { d } = 900 - 60 p$ Supply: $Q _ { s } = - 200 + 50 \mathrm { P }$ Equilibrium price and output are

A) P = $7 and Q = 480.
B) P = $10 and Q = 300.
C) P = $20 and Q = 150.
D) P = $100 and Q = 5,300.