52
composition of the gas: 131 (Inert), 135 (Active)
29 - 16 = 13
82 - 29 = 53
131 is a prime number 29 is a prime number so the answer is 131/51 = 2 and 29/51 (a mixed number). Note as 29 is also a prime number, the proper fraction 29/51 can not be simplified.
The answer is 24.
34
its 63
14
21 is the answer
26
-87