Answer:
B. -21a-15
Step-by-step Explanation:

bisector. Base. In geometry, the base of a shape is the side (usually the bottom) that forms a right (90 degree) angle with the height of the object. Biannual.
I have a screenshot of the answer
Answer:
0.01010
Step-by-step explanation:
The decimal equivalent is ...

Rounded to 4 significant figures, it is ...
0.01010
Answer:
C.6
Step-by-step explanation: