Answer:
B. A regular polygon having 10 sides if called a regular decagon.
Step-by-step explanation:
Hexagon- 6 sides
Pentagon- 5 sides
Octagon- 8 sides
Step-by-step explanation:

all the details are in the attachment.
Answer:

Step-by-step explanation:
Multiplying 5 by itself is the same thing as raising it to the second power:

We multiply 2 by itself two seperate times. That's the same thing as raising 2 to the second power to the second power or in simpler terms raising two to the fourth power:

Since only multiplication is present, we can combine the two terms to get:
