Correct Question: Find the simplified product: 
Answer:

Step-by-step explanation:
Based on the rules of radicals, since
and
has the same index (square root), therefore:

To simplify this, multiply their bases together, and add their exponents.


Simplify further



Not sure about the others but
b) 8,192
the pattern is multiplying by 8 each time for b
X= -10, 10
This is the answer.
It would be 16 more 6th graders that are not in either band or orchestra.
15 6th Graders in band
9 6th Graders in both classes
+18 6th Graders in orchestra
-----
42 6th Graders in either class
100 6th Graders in total
-42 6th Graders in either class
-------
58 6th Graders in neither class
58-42= 16 more 6th Graders that are not in either class
You're welcome :)