In a question on mathswatch it says 2x-y+3x+y

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two

The computer that controls a bank's automatic teller machine crashes a mean of 0.6 times per day. what is the probability that, in any seven-day week, the computer will crash less than 5 times? round your answer to four decimal places