How do u do # 12 and can u show how

Hi there! I’m happy to help you with this! 10 kilometers is equivalent to 10,000 meters. So to find the amount of yards, we have to do 10,000 * 1.094. When you do that, you get 10,940. The length of the race is 10,940 yards long. But we are looking for the how long the track is by miles, so for this, we must do 10,940/1,760. When you do that, you get 6.21590 and other numbers or 6.22 miles when rounded to the nearest hundredth. The length of the race is about 6.22 miles.