Write a real-world problem that could be modeled by the equation below. identify the elements of the percent equation and where they appear in your word problem, and then solve the problem. 57.5=p(250)

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?