1) The demand curve for asparagus takes the form of

Q_A = 2240 4.8P_A 1.8P_B

where P_A is the price of asparagus, and P_B is the price of beans. At one equilibrium, Q_A = 14.76 and the cross-price elasticity between asparagus and beans is -2.26. Then we can compute that P_B = [Answer] at the equilibrium.

(In decimal numbers, with two decimal places, please.)

2) Continue with the last question. We can further compute that P_A = [Answer].

(In decimal numbers, with two decimal places, please.)

3) At the current equilibrium point, the price elasticity of demand for soda is 0.6 and the price elasticity of supply for soda is 1.13. Suppose the demand decreases by 3.42%. This leads to a decrease of [Answer]% in the equilibrium quantity.

(In decimal numbers, with two decimal places, please.)

4) At a gas station, the clerk of the only convenience store found that he can sell 138 packs of chewing gum when the price is $2.4 and 67 packs of chewing gum when the price is $5.5. Suppose the demand for chewing gum is linear and downward sloping, and the clerk has been instructed by his boss to set the price to maximize revenue. Given this instruction, he should set the price at $[Answer] per pack.

(In decimal numbers, with two decimal places, please.)