Albert purchased a tract of land for $140,000 in 2016 when he heard that a new highway was going to be constructed through the property and that the land would soon be worth $200,000. Highway engineers surveyed the property and indicated that he would probably get $180,000. The highway project was abandoned in 2019 and the value of the land fell to $100,000. What is the amount of loss Albert can claim in 2019? a.$100,000 b.$60,000 c.$40,000 d.$80,000 e. None of these choices are correct.

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.