The cost of renting a van for one day includes a flat rental fee plus a charge for each mile the van is driven while it is rented. A van that is driven 107 miles costs $97.15. A van that is driven 127 miles costs $106.15. What is the flat rental fee?
A$19
B$20
C$45
D$49

Question

The cost of renting a van for one day includes a flat rental fee plus a charge for each mile the van is driven while it is rented.  A van that is driven 107 miles costs $97.15.  A van that is driven 127 miles costs $106.15.  What is the flat rental fee?
A$19
B$20
C$45
D$49

anonymous · Answer

x+107y=97.15
x+127y=106.15
flat rent=x=0.45 $
extra charge=0.83$ per mile