In 20X2, the Robinson Company switched its inventory method from FIFO to average cost. Inventories at the end of 20X1 were reported in the balance sheet at $22 million. If the average cost method had been used, 20X1 ending inventory would have been $20 million. Ending inventory in 20X2 is $23 million using average cost, and would have been $26 million if the company had not switched from the FIFO method. The company's tax rate is 25%. The effect of the change in method on 20X2 income before taxes is a:

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.