How would these questions relating to elasticity be approached:

Consider a change in consumer demand for cigarettes: P = 9 l/SQD Inverse supply for cigarettes is still given by P = 1/ 10QS This time, levy $1.50 per-unit tax on suppliers. Q1: What is the new equilibrium \"sticker price\" after the changes? What is the new equilibrium quantity under the changes? Q2: Now who (if anyone) will bear a higher tax burden? Q3: How can we determine the answer to Q2 without solving for the new equilibrium values under the tax? 2) Suppose that the slope of the linear demand curve for sock puppets is -1/2. What is the price elasticity of demand for sock puppets at a price of $1 and a quantity of 2? 3) Suppose that demand for cookies is given by QD = 100 - 20P. Further suppose that the price of cookies is currently $2. What is the price elasticity of demand at the current price? 4) Given the following pieces of information, estimate the price elasticity of demand over the range of values given. (Do not assume that the demand curve is linear.) At P = 3, QD =9. At P = 5, QD = 3