1.The following table depicts the weekly demand and supply of office visits at a local children's clinic staffed by four physicians.

Price per visit

Quantity demanded

Quantity supplied

$20

300

150

25

275

175

30

250

200

35

225

225

40

200

250

45

175

275

50

150

300

a.Draw the demand and supply curve for office visits

b.What is the equilibrium price and quantity of office visits per week?