Question 8 25 pts Assume the demand for good X is given by Qx = 40 - 4PX + 2Py +0.5M +4A where Px represents the price of good X, Py is the price of good Y, M is income, and A is the amount of advertising on good X. Suppose the current price of good X is 20, the price of good Y is 25, income is 60, and the amount of advertising is 5. How much will quantity demanded change if advertising is increased by 10%? (Hint: calculate the advertising elasticity.) O Increase by 3.3%. Increase by 1.3%. Increase by 4%. O Increase by 10%. Question 9 2.5 pt Assume the demand for good X is given by Qx = 40 - 4PX + 2Py + 0.5M + 4A