Answer:
22 miles
Step-by-step explanation:
Given data
A towing company charges $50 plus $4 per mile
let the number of miles be x
the expression for the charges for x miles y is given as
y= 50+4x
for y= 138
138= 50+4x
138-50= 4x
88= 4x
x= 88/4
x= 22 miles
Hence the distance is 22 miles