In standard form:
answer- 14,000 and 12,000
Example
←LEFT 12,000
↑
comma(THOUSANDS PLACE)
ten thosands is the second number after the comma(thousands) to the left
Answer:
probably d sorry i couldnt alot

Substitute x = 3 in any given equations. I will do in y = - x + 1

Therefore the answer is (3,-2)
In order to answer the question we need the lengths to do the math.