Hank is working in a silver mine 10ft below the surface. he descends until he reaches a point 57ft below the surface. how many feet does hank descend?

Depth of Hank descends = The point he reached - the point where he worked initially

                                          = 57 - 10

                                          = 47 ft

Hence, Hank descends 47 ft.

if you explain the the question more correctly i might be able to answer this better

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