Answer: sometimes
Step-by-step explanation:
Answer:
on the number line make an open circle at 80 (am open circle is this: ○) and connect that to an arrow that points back to 0 and the negative numbers. It doesn't matter how far back as long as you make it an arrow
This would be the identity property of addition telling us that any number added to zero is that number (i.e. 6 added to zero is still 6)
36, 3.6, 0.36, 0.036 is the order