The demand and supply functions of Good X are:

QD= 110 - 2PX- 4PY+ M

QS= 200 + 4PX- 2W

Currently, Py= 25, M = 330 and W = 140

What is the equilibrium market price?

Refer to the demand and supply functions above.

What is the equilibrium quantity exchanged in this market?

Refer to the demand and supply functions above.

At the market equilibrium price, what is the own price elasticity of demand for good x?

Refer to your answer above.

The own price elasticity of demand for good x is inelastic.