If n is an even number which statement is true about n+1

The system of equations graphed below has how many solutions? y = 2x + 2

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.

Im literally having a mental breakdown