I need help please last test of the year I need to past

Find two rational expressions that have the difference of 2-n/n-4

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4

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?