Question 891882
a) Assuming Jane's 450 miles were traveled in the same week, she would owe 450 * .20 = $90 in mileage + $200 base fee.  Total: $290
b) If the total bill is $300, and if the travel was within a week, Jane owes $300 - $200 base fee = $100.  $100 divided by .20 = 500 miles