In the set of all past due accounts, let the event A mean the account is between 31 and 60 days past due and the event B mean th
e account is that of a new customer. The complement of A is a. all new customers. b. all new customers whose accounts are between 31 and 60 days past due. c. all accounts fewer than 31 or more than 60 days past due. d. all accounts from new customers and all accounts that are from 31 to 60 days past due.
you would divide 3.45 by 3 to get 1/4, which is 1.15, then multiply that by 4 to get the cost for one pound, which is 4.6. multiply 4.6 times 7.2 to get your answer of 33.12