The type of discount you can get at the store stated in the situation would be a price discount. This is because regardless of the what item you buy in the store or whatever age you have, the discount is applicable with all. Also, this situation might be one that's usually in a surplus or when you want everything to be sold.
If I did this right it should be 8.
5 miles are ran total. Take away ten minutes of warm up from the total time of 45 minutes. You now have 35 minutes of running. You will now divide 35 minutes by 7 minutes. Which equals 5
90k/60minutes, the car travels 3/2 kilometers in a minute. 20 x 3/2 is 30 kilometers that the car travels in 20 minutes.
