What is the time limit for disputing a billing error or credit card charge?

Cesar had a part-time job last year. he worked every week for the year and made $23 an hour. he worked 28 hours each week. cesar saved what was left of his earnings after paying all of his monthly expenses. at the end of the year, he had saved $3,360. what were cesar’s average monthly expenses, rounded to the nearest dollar?

During march, the business engaged in the following transactions: a. borrowed $45,000 from the bank and signed a note payable in the name of the business. b. paid cash of $40,000 to acquire land. c. performed service for a customer and received cash of $5,000. d. purchased supplies on account, $300. e. performed customer service and earned revenue on account, $2,600. f. paid $1,200 on account. g. paid the following cash expenses: salaries, $3,000; rent, $1,500; and interest, $400. h. received $3,100 on account. i. received a $200 utility bill that will be paid next week. j. paid cash dividends of $1,800. required: 1.) prepare journal entries for each transaction. enter journal entries by the transaction letter. 2.) prepare the trial balance of my motors, inc. at march 31, 20xx. 3.) prepare financial statements for my motors, inc. for the period ending march 31, 20xx. (income statement and balance sheet)

Every day, a random sample of 325 computer memory chips produced by a factory is tested to see if the chips meet their minimum speed ratings for certain operations. if 3 of the chips failed the test on a day when 15,500 chips were made, which is the best estimate of the number of memory chips made that day that are likely to meet the minimum speed ratings for those operations?