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In the following diagram, four different index fossils are labeled: which of the labeled fossils comes from the oldest organism? a b c d

Find the coordinates of a if b(-9,-10) is the midpoint of ac and c has the coordinates of (-1,9)

Afathom is a unit of length, usually reserved for measuring the depth of water. a fathom is approximately 6 ft in length. take the distance from earth to the moon to be 230,000 miles, and use the given approximation to find the distance in fathoms.