Answer:
Step-by-step explanation:10x3 1/6=30 10/6=31 2/6=31 1/3
Answer: 11√7
<u>Step-by-step explanation:</u>
Inversely proportional means y√x=k, where k is the constant of proportionality
Find k, when x = 7 and y = 11 ----> 11√7 = k
<em>Answer:</em>
<em>20</em>
<em>Step-by-step explanation:</em>
<em>160% ............ 32</em>
<em>100% .................x</em>
<em>x = 100*32/160 = 3200/160 = 20</em>
<em>Good luck !</em>
I'm not sure if A B C D are answers, but I can say for sure that C is positive and A, B, and D are negative.
A:

Since there is only one -1, the expression is negative;

B:

Here as well, there is only one -1, so the expression is negative;

C:

The -1 cancels out;

D:

Here, you can't cancel the -1 out, so it remains negative;

Sorry for the delay, hope this helps :)