In Europe, gasoline efficiency is measured in $$km/L$$.
A sprinter set a high school record in track and field, running $$200.0$$ m in $$21.5$$ s. What is the average speed of the sprinter in kilometers per hour?
A specific brand of gourmet chocolate candy contains $$7.00$$ g of dietary fat in each $$22.7$$ g piece. How many kilograms of dietary fat are in a box containing $$1.00$$ lb of candy?