On June 1, 2021, Duncan Inc. purchased equipment for $74,000. The equipment had an estimated life of 10 years, an estimated residual value of $8,000,
and was expected to be used to produce 120,000 units over its life. During
2021, the equipment was used to produce 11,000 units and during 2022 it was
used to produce 19,000 units.
Assume the company employs the units of production method of depreciation.
Calculate the amount of accumulated depreciation on the equipment shown in
the company's December 31, 2022 balance sheet.

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.