286 feet; use the numbers and find the area of each rectangle, then add them all together.
B. You can determine this by remember that the ordered pair is like a coordinate, the first digit represents the x and the second represents the y. Plug them in to both equations and if they work in both then it’s a solution, if it works in only one it is not.
9(-2) + 8(3) + 1 - 6(-2) - 5(3) - 6
-18 + 24 + 1 + 12 - 15 - 6
= -2