Bella is taking an adventurous trip through the jungle. First, she trekked for 1 hour into the thick jungle at an average speed of 6 km/h. next, she took a boat to cross a lake which rode her at an average speed of 20 km/h for 0.5 hours. for the lost part of her trip, she hiked for 2 hours at an average speed of 4 km/h. find the total distance on her trip.