The answer to this is 660
Answer:
Step-by-step explanation:An x-y axis, also known as a cartesian coordinate system or a coordinate plane, is a two-dimensional plane of points defined uniquely by a pair of coordinates.
Hope this helped!!!!
Answer: -13
Step-by-step explanation: Think of it as 5+8 because they are both negative, then add the minus symbol.
Step-by-step explanation and the Answer:

2.98×100000= 298000
So therefore the answer is 298000.