Very early in 2018, while developing software for sale to others, after achieving technological feasibility but before the commencement of commercial production, x company incurred $320,000 to produce product masters and to test the software. x company estimated that the software will be sold for a total of 10 years. after nearly a full year of selling, x had revenues from software sales of $120,000 in 2018. sales in future periods are expected to amount to $680,000. costs associated with producing and packaging the software approximate 10% of revenues. what portion, if any, of the $320,000 will be recognized in income in 2018?
a. $48,000
b. $32,000
c. $0
d. $320,000

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.