Solve each system. if a system's equations are dependent or if there is no solution ,state this . Please answer Thank you !

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.

Which of the following best describes the figure?

Indicate the formula for the following conditions: p^c(n,r)=