Suppose an 18 percent drop in the price of strawberries leads to a 24 percent increase in the quantity demanded of strawberries and a 12 percent decrease in the quantity demanded of plums. A. What is the price elasticity of demand for strawberries? B. At the current price level, the demand for strawberries isbecause the price elasticity of demand for strawberries is. C. What is the cross-price elasticity of demand between strawberries and plums? D. Strawberries and plums arebecause the cross-price elasticity of demand is.

David consumes two things: gasoline (g) and bread (b). david's utility function is u(g, b) = 10g^0.25 b^0.75. use the lagrange technique to solve for david's optimal choices of gasoline and bread as a function of the price of gasoline, p_g, the price of bread, p_b, and his income m. with recent decrease in the price of gasoline (maybe due to external shock such as shale gas production) does david increase his consumption of gasoline? for david, how does partial differential g/partial differential p_g depend on his income m? that is, how does david's change in gasoline consumption due to an increase in the price of gasoline depend on his income level? to answer these questions, find the cross-partial derivative, |partial differential^2 g/partial differential m partial differential p_g.