Answer: D. 
Step-by-step explanation:
Using exponent rules an exponent to the power of a number will multiply by each other.
So the -4 and -9 will multiply.
The 6 in the numerator will now have a positive exponent of 36.

Now we can divide and when we do so the exponents will subtract from each other.
So 36 - 6 = 30
And the base of 6 does not change.
The simplified form is 
Answer:
13 1/3°
Step-by-step explanation:
Divide 360° (full circumscribed circle) by 27.
There will be 27 identical interior angles, each measuring 13 1/3°
Answer: 234
Step-by-step explanation: 78 * 3 = 210 + 24 = 234
Answer:
The answer is an obtuse angle
Step-by-step explanation:
Anything over 90 degrees is obtuse. Anything below 90 is acute and if is exactly 90 it is a right angle
You would multiply rows by seats to get the total so you multiply 24 by 18. so that would get you 432 seats in total. Hope it helps!