Answer:
It's the chemical because they have to work with dangerous stuff.
Answer:
1)
; 2) 
Step-by-step explanation:
1) Using the Power of a Fraction Rule
,
, which can just be simplified to
.
2) Using the Negative Exponent Rule,
,
, which can be simplified to
.

There are pi radians in 180 degrees. Therefore to convert degrees to radians we need to divide by 180 and multiply by pi, as follows:
Wouldn't it be 12y-2? or is there information you are leaving out?
2x-5=x+2
x=7
The answer is 7