Answer:
B.) (-202)+(-12)
Step-by-step explanation:
The undersea level is negative then going under again will produce a completely negative answer.
First, we get rid of the negative exponent in the parenthesis. We do this by moving it to the top. Our equation is now:

Next, we can cross out one n from both the top and the bottom.

Finally, we evaluate the -2
Our equation becomes:

This becomes:

This can not be simplified any further, so this is the final answer.
Answer:
B) irrational
Step-by-step explanation:
<em>It can not be imaginary</em>, because imaginary numbers are √(negative number).
<em>It can not be rational</em>, because the cube root of 11 can not be displayed as a repeating or ending number (it's 2.22398009... by the way).
The only option is irrational.