That would be 40000 because you would move the decimal place over 4 places
Step-by-step explanation:

800m is greater than 799,999mm
Answer:
Step-by-step explanation:
-8y-4x^3-1
Answer:
Yes it is tangent because it is touching a certain point
Step-by-step explanation:
Heres a pic i found of an example and it looks exactly like that one