Clara= 30+45 (75)
Adam = 2x75 (150)
745+5+150=270min
Let the wire left be x yards.
Therefore, the answer of your question will be x yards.
Answer = x yards
co·ef·fi·cient
ˌkōəˈfiSHənt/Submit
noun
1.
MATHEMATICS
a numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g., 4 in 4x y).
So, 22 is your coefficient.
I think the answer is b i hope this helps
