Homework on ISBN codes and bank checks.

Prob 1. Describe, discuss and explain the check digit on 13 digit ISBN codes. Be sure to use a real-life example by getting a 13 digit ISBN code from a book. (NOT our text, find another book.) Show your calculation.

Prob 2. Describe, discuss and explain the check digit on bank codes. Be sure to use a real-life example by obtaining the routing code of a bank from the internet.