Ineed with my homework i'm confused i don't understand how to figure how much is the total number of students

Identify whether the figure has plane symmetry, symmetry about an axis, or neither.

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

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.