Ben and his friend share a taxi to work. The taxi driver charges a $2.50 flat fee as well as $0.40 for every 1/5 of a mile traveled. The total distance of the taxi ride was 4.2 miles. Ben and his friend split the final bill. How much did each friend pay? A-$5.45B-$10.90C-$4.18D-$6.70

Answer:$10.90Step-by-step explanation:The total charge for the ride was C(x) = $2.50 + ($0.40 / fifth of a mile)4.2 miles is divisible by 1/5 mile:  it's the same as (4.2 mile) / 0.2 mile: 4.2 miles--------------- = 21          This means the ride consisted of 21  1/5-mile distances.  0.2 mileThus, The total charge for the ride was C(21) = $2.50 + ($0.40 / fifth of a mile)(21), or                                               c(21) = $2.50 + 21($0.40)                                                        = $2.50 + $8.40                                                        = $10.90