Help ill give extra points

Which point is a solution to y s 4x + 5?

Find the solution(s) to x^2-14+49=0

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?