Solve. Remember to insert units when writing your answer.A submarine probe was lowered to a point 1 mile 3,284 feet below the ocean's surface. Later it was lowered an additional 1 mile 4,711 feet below this point. How far is the probe below the surface?
A. 2 mi 2,715 ft
B. 3 mi 2,715 ft
C. 2 mi 3,715 ft
D. 3 mi 2,815 ft
Answer: B
Mathematics
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A. 
B. 
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