An engineer is trying to formulate the minimum cost set of materials to use in an upcoming project. There are four groups of materials, and exactly one item from each group must be selected. The costs are given below: Group A Cost Group B Cost Group C Cost Group D Cost A1 10 B1 2 C1 8 D1 5 A2 12 B2 1 C2 9 D2 8 A3 16 C3 11 D3 9 C4 13
If B2 is selected, then A3 must be used. We can use at most one of A1, B1, C1, and D1, while we must have at least two of A3, C3, C4, and D3. Finally, D1 cannot be used unless A2 or C4 is used. Formulate and solve a 0-1 integer programming model that will determine the optimal solution.

Match the items with the actions necessary to reconcile the bank statement.(there's not just one answer)1. interest credited in bank account2. fee charged by bank for returned check3. checks issued but not deposited4. deposits yet to be crediteda. add to bank statementb. deduct from bank statementc. add to personal statementd. deduct from personal statement

Shawn received an e-mail offering a great deal on music, movie, and game downloads. he has never heard of the company, and the e-mail address and company name do not match. what should shawn do?

He moto hotel opened for business on may 1, 2017. here is its trial balance before adjustment on may 31. moto hotel trial balance may 31, 2017 debit credit cash $ 2,283 supplies 2,600 prepaid insurance 1,800 land 14,783 buildings 72,400 equipment 16,800 accounts payable $ 4,483 unearned rent revenue 3,300 mortgage payable 38,400 common stock 59,783 rent revenue 9,000 salaries and wages expense 3,000 utilities expense 800 advertising expense 500 $114,966 $114,966 other data: 1. insurance expires at the rate of $360 per month. 2. a count of supplies shows $1,050 of unused supplies on may 31. 3. (a) annual depreciation is $2,760 on the building. (b) annual depreciation is $2,160 on equipment. 4. the mortgage interest rate is 5%. (the mortgage was taken out on may 1.) 5. unearned rent of $2,580 has been earned. 6. salaries of $810 are accrued and unpaid at may 31