Chris claims that any fraction located between 1/7 1/9 on a number line must have a
denominator of 8. Enter a fraction that shows Chris’ claim is incorrect.

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?