1. Potential customers arrive at a full-service, two-pump gas station according to a Poisson process with rate 20 cars per hour. However, customers will only enter the station for gas if there are less than three cars at the two pumps. Suppose the amount of time required to service a car is exponentially distributed with a mean of five minutes.

(a) What fraction of the attendant’s time will be spent servicing cars?
(b) What fraction of potential customers are lost?

The market demand curve for a popular teen magazine is given by q = 80 - 10p where p is the magazine price in dollars per issue and q is the weekly magazine circulation in units of 10,000. if the circulation is 400,000 per week at the current price, what is the consumer surplus for a teen reader with maximum willingness to pay of $3 per issue?

Swathmore clothing corporation grants its customers 30 days' credit. the company uses the allowance method for its uncollectible accounts receivable. during the year, a monthly bad debt accrual is made by multiplying 3% times the amount of credit sales for the month. at the fiscal year-end of december 31, an aging of accounts receivable schedule is prepared and the allowance for uncollectible accounts is adjusted accordingly. at the end of 2012, accounts receivable were dollar 586.000 and the allowance account had a credit balance of dollar 50,000. accounts receivable activity for 2013 was as follows: the company's controller prepared the following aging summary of year-end accounts receivable: prepare a summary journal entry to record the monthly bad debt accrual and the write-offs during the year. (if no entry is required for a particular event, select "no journal entry required" in the first account field.) prepare the necessary year-end adjusting entry for bad debt expense. (if no entry is required for an event, select "no journal entry required" in the first account field.) what is total bad debt expense for 2013? calculate the amount of accounts receivable that would appear in the 2013 balance sheet?

Bruno's pizza restaurant makes full payment of $8,300 on an account payable to stella's cheese co. stella's would record this transaction with a