this one you can solve easily.
take each equation and put number of miles in that , calculate cost and compare the table.
for example
taking first equation
c = 0.15m + 5.75
noe.from table take m = 10, after putting this we should get cost equal to 5.75 as mentioned in table.
c = 0.15×10 + 5.75 = 7.25 ≠ 5.75
so ignore this and take next equation
c = 0.15m + 4.25
m =10
c = 0.15×10 + 4.25 = 5.75
which matches with our table. putting other values of m from table gives us the right cost mentioned in table . so answer is option B
you can verify that no other equation satisfies the table data.
