Round down to 54.6 because it is 5 or less.
We can see that the lines intersect at (-5,3) on the graph, so that eliminates choices B and D. Both A and C say that the first line is y=x+8, which is true. A says that the second line is y+x=-2, and after isolating y, we get y=-x+2, which seems correct. Do the same for C, and you will find that it says the other equation is y=x-2, which is not true because it must have a negative slope. So your answer will be choice A.
Answer:
30000-2000=28000 feet.
This is a form of subtraction to use the ground and descend to ground level.
Step-by-step explanation:
