Answer
a. One x and one y will be the solution
b. No Solution
c. There will be infinitely many solutions
Work Step by Step
A. Since the lines intersect at only one point, the coordinates of only that point are the solution to the system.
B. Since the lines never intersect, there is no solution.
C. Since the lines are exactly the same, there are an infinite number of solutions since the lines extend indefinitely.