<span>B. square
</span><span>C. Draw arcs on the circle with the compass set at r units.
</span>
Answer:
Step-by-step explanation:
-6 - (-9)
1) Remove parentheses
-6 + 9
2) Simplify
3
See attachted image for rules of positive and negative integers.
Source: YourDictionary
It’s the first one ( quadratic )