opinion and belief mean a judgment that someone thinks is true. ... belief is used if the judgment is certain and firm in a person's own mind without regard to the amount or kind of evidence.
I will have to go with carbon monoxide
Fuel......................................
Answer:

Explanation:
From the question we are told that:
Content of Sterling silver:
Let x be sterling silver
Silver 
Copper 
Total silver available 
Generally the equation for Total amount to be made is mathematically given by


