Consider the following division of polynomials. A) Use long division to determine the quotient of the polynomials. Show all of your work for full credit.

B) Use mathematical methods to prove your answer. Show all of your work for full credit.

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?