What is the reciprocal of the number 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.

The random variable x is defined as the number marking the sector in which the arrow lands when the spinner in the diagram is spun once.

What is 140 squared pleas me i am dumb