Right ! the graph shows two lines, a and b. part a: how many solutions does the pair of equations for lines a and b have? explain your answer. part b: what is the solution to the equations of lines a and b? explain your answer.

Part A: How many solutions does the pair of equations for lines A and B have? Explain your answer.
The pair of equations have two solutions this is because the graph has been plotted from two systems of linear equations that the number of solutions is equal to the number of equations which is equal to 2 solutions.

Part B: What is the solution to the equations of lines A and B? Explain your answer. 
The solution to the systems of equations is found at the point where the lines intersect. This is at point (3,4); Thus the solution to the equation is x=3 and y=4.