The lowest point in Japan is 4 meters below sea level. The lowest point in Mali is 23 meters above sea level. What is the change in elevation from the lowest point in Mali to the lowest point in Japan? -27 meters -19 meters 19 meters 27 meters

You coordinate volunteers for litter cleanup in local parks. your spreadsheet lists drivers and the number of seat belts in each driver’s car. the spreadsheet calculates the number of drivers (d) and the total number of seat belts (s). you want to know the maximum number of volunteers, besides drivers, that can be transported to the park in a single trip given that each person must have a seat belt of their own.