The demand curve for a product is given by QXd = 1200 3PX 0.1PZ where Pz = $30

The demand curve for a product is given by QXd = 1200 3PX 0.1PZ where Pz = $300. a. What is the own price elasticity of demand when Px = $140? Is demand elastic or inelastic at this price? What would happen to the firms revenue if it decided to charge a price below $140?Instruction: Round your response to 2 decimal places. Own price elasticity: Demand is: If the firm prices below $140 revenue will: b. What is the own price elasticity of demand when Px = $240? Is demand elastic or inelastic at this price? What would happen to the firms revenue if it decided to charge a price above $240?Instruction: Round your response to 1 decimal place. Own price elasticity: Demand is: If the firm prices above $240 revenue will: c. What is the cross-price elasticity of demand between good X and good Z when Px = $140? Are goods X and Z substitutes or complements?Instruction: Round your response to 2 decimal places. Cross-price elasticity: Goods X and Z are: