A real estate agent is considering changing her cell phone plan; there are three to chose from - all involve a monthly fee of $19.25 Plan A charges $0.37 per minute for daytime calls and $0.18 per minute for evening calls. Plan B charges $0.58 per minute for daytime calls and $0.18 per minute for evening calls. Plan C has a flat rate of $33 with up to 200 minutes of calls included per month and a charge of $0.31 per minute beyond that, day or evening. a. Determine the total charge under each plan for this case: 120 minutes of day calls and 40 minutes of evening calls in a month.
b. If the agent will use the service for daytime calls only, how many minutes per month should she stay below so that Plan A is the least cost alternative?
c. Suppose that the agent expects both daytime and evening calls. At what point (i. e., percentage of total call minutes used for daytime calls) would she be indifferent between plans A and B?

During january 2018, the following transactions occur: january 1 purchase equipment for $20,600. the company estimates a residual value of $2,600 and a five-year service life. january 4 pay cash on accounts payable, $10,600. january 8 purchase additional inventory on account, $93,900. january 15 receive cash on accounts receivable, $23,100 january 19 pay cash for salaries, $30,900. january 28 pay cash for january utilities, $17,600. january 30 firework sales for january total $231,000. all of these sales are on account. the cost of the units sold is $120,500. the following information is available on january 31, 2018. depreciation on the equipment for the month of january is calculated using the straight-line method. the company estimates future uncollectible accounts. at the end of january, considering the total ending balance of the accounts receivable account as shown on the general ledger tab, $4,100 is now past due (older than 90 days), while the remainder of the balance is current (less than 90 days old). the company estimates that 50% of the past due balance will be uncollectible and only 3% of the current balance will become uncollectible. record the estimated bad debt expense. accrued interest revenue on notes receivable for january. unpaid salaries at the end of january are $33,700. accrued income taxes at the end of january are $10,100