Asea lion dove from the water's surface at sea level to an altitude of −216.12 meters in 2.4 minutes.

what is the average change in the sea lion's altitude per minute?

The distance between a football fsaid and a parking lot is 135 feet. what is that length in yards? 2 mickey needs to cut pieces of ribbon that are each 1 meter long to tie onto balloons. if he has 8 pieces of ribbon that are each 1 dekameter long, how many 1-meter pieces of ribbon can he cut? show work