Answer:
Step-by-step explanation:
abc = 1
We have to prove that,

We take left hand side of the given equation and solve it,

Since, abc = 1,
and c = 
By substituting these values in the expression,




Which equal to the right hand side of the equation.
Hence, 
5.5x+180=455
5.5x=275
The answer is X=50
Answer:
False
Step-by-step explanation:
Because the gcf of 10 and 18 is 2