A diver descends to a depth of –25.6 feet relative to sea level. How many feet must the diver ascend to reach sea level?

Answer 1

25.6 feet to ascend to sea level = zero feet

from -25.6 down under

(is this a trick question? sort of like who's buried in Grant's tomb? what goes down, must go up the same distance to get where it started. You lose $400. To break even you have to win $400)