Answer:
4x-4y
Step-by-step explanation:
Given time to work by hazel = x+6y
Time from work = 3x-10y
The expression which represents the total time Hazel spends commuting to and from work each day will be the sum of function of time hazel spend to work and from work.
Let time to work be f(x) and time from work be g(x)
The total time taken to and fro will be f(x)+g(x)
f(x)+g(x) =x+6y +(3x-10y)
f(x)+g(x) = x+3x+6y-10y
f(x)+g(x) = 4x-4y
