Who wants to be my boo thing ;)

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

What is the solution set of the quadratic inequality x^2-5< or equal to 0