7. In June 2020, Parks Canada closed the Bow Valley Parkway (Highway 1A) to vehicle traffic between Banff and Castle Junction near Johnston Canyon. This made for a bike ride that cut through a small piece of Canada's beautiful Rocky Mountains. A group of friends decide to cycle the trip, 25 km each way, from Banff to Johnston Canyon and back. They ride towards Johnston Canyon straight into the wind, and then have the wind at their backs on the return trip. The wind adds or subtracts 5 km/h from their speed. If the group of friends want to complete the round trip in 3 hours, algebraically find the average speed with no wind the group needs to cycle. Complete the distance speed time chart to help solve the question. Round your answer to the nearest hundredth of a km/h. (3 marks) Distance Speed Time Banff to Johnston Canyon Johnston Canyon to Banff