Determine the check digit for the UPC code

$0-52000-11518-x$

A$)1$

B$)3$

C$)5$

D$)7$

E$)$ None of these

$2.$ Determine the check digit for the ISBN$-10$ code

$0-321-96885-x$

A$)1$

B$)3$

C$)5$

D$)7$

E$)$ None of these

$3.$ Determine the check digit for Bank Routing Number

$24164732x$

A$)1$

B$)3$

C$)5$

D$)7$

E$)$ None of these

$4.$ Determine the last digit of a MasterCard credit card with the following number:

$5142,0456,7252327x$

A$)1$

B$)3$

C$)5$

D$)7$

E$)$none of these