The demand curve for product X is given by Qx - 400 - 2PX. a. Find the inverse demand curve. Instruction: Enter all values as integers, or if needed, as a decimal. PX = Q ) Instructions: Enter your responses to the nearest penny (two decimal places). b. How much consumer surplus do consumers receive when Py = $40? c. How much consumer surplus do consumers receive when Py = $30? d. In general, what happens to the level of consumer surplus as the price of a good falls? The level of consumer surplus (Click to select) | as the price of a good falls