An aging of a company's accounts receivable indicates that $3140 are estimated to be uncollectible. If Allowance for Doubtful Accounts has a $820 debit balance, the adjustment to record bad debts for the period will require a: a. debit to Bad Debt Expense for $3140.
b. credit to Allowance for Doubtful Accounts for $820.
c. debit to Bad Debt Expense for $3960.
d. debit to Bad Debt Expense for $2320.

Power plants that rely on coal increase the amount of sulfur dioxide that dissolves into the air, eventually increasing the acidity of precipitation. the higher acidity of rain and snow can damage forests by making it more difficult for plants to absorb minerals from the soil. the equations below provide information about the market demand and supply of electricity. there is a constant marginal external cost of $25 per unit of electricity.d: qd= 200 – 2ps: qs=p – 10what quantity of electricity satisfies allocative efficiency in this market? a. 60b. 70c. 50d. 43.3