Part A:
We see that this pair of equations has 1 solution. On a graph, the solutions of 2 (or more) lines is where the lines intersect. In this case, since these lines intersect 1 time, they have 1 solution.
Part B:
As previously mentioned, the solutions of multiple lines is where the lines intersect. In this case, since they intersect at (4,4), that is the solution.
Answer:
I don't see the polygon but all you need to do is add up all the sides.
It would probably be x= 20 ×7
Answer:
may I see a photo?
Step-by-step explanation: