Here is how to work the problems and write the expressions.
I think the domain and range are infinite
The answer is 4 1/6 because 4/1 + 1/6= 25/6 = 4 1/6.
Yes correct x is 48.02 here is why.
simplify 45.6/109.2 to 0.417582
multiply both sides by 115
simplify 0.417582 x 115 to 48.021978
switch sides
Answer: x = 48.021978