Kiley and her parents traveled to visit her grandmother. They drove 24.3 miles from their house to the airport in 0.5 hour. At the airport, they exited the car and walked for 0.75 hour to the waiting area by the gate to board their plane. Their walk covered 1.2 miles. From the waiting area, they walked another 0.1 mile to board the plane. The plane left the gate 45 minutes after they arrived at the waiting area. The plane flew 346 miles in 2.25 hours. After the plane landed, Kiley and her parents walked for 30 minutes, covering 1.1 miles, before they found a cab. It was a 15-minute cab ride to get to Kiley’s grandmother’s house, which was 12.3 miles away. Recall that Kiley waited for a period of time in the waiting area near the gate before boarding her plane. What percentage of her total travel time did this waiting represent? Help please I'm so confused