In the construction, A is the center of one circle, and B is the center of the other, Explain why segment EA is the
same length as segment BC.

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?