Total numbers of cars present in the rally is 135
Amount paid by a single driver to participate in the rally = $25
Total amount generated by the participation fee from each driver is equal to the sum of amount paid by all the 135 cars.
Since we cannot add $25 for 135 times, we use multiplication operation.
Total amount = amount paid by one single driver multiplied by the total number of cars.
Total amount = $ .... Answer