The following information relates to Halloran Co.'s accounts receivable for 2021: Accounts receivable balance, 1/1/2021 $ 840,000 Credit sales for 2021 3,300,000 Accounts receivable written off during 2021 70,000 Collections from customers during 2021 3,100,000 Allowance for uncollectible accounts balance, 12/31/2021 210,000 What amount should Halloran report for accounts receivable, before allowances, at December 31, 2021?

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.