Mr. Lee regularly spends a total $145 commuting to work by train Monday through Friday. On Wednesday
of a given five-day week, however, Mr. Lee decides to
commute to work by car, instead of by train. If the cost
of commuting by car is $7, how much money does Mr.
Lee save commuting to work that week? (Assume the
regular train fare is the same each day of the week.)
F. S 7
G. S 12
H. $ 22
J. $138
K. S143