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Mark dug a 20 foot hole in 4 hours. Which rational number shows the average depth Mark dug each hour? Check all that apply.


(A) –5


(B) [tex]\frac{-20}{4}[/tex]


(C) −[tex]\frac{4}{20}[/tex]


(D) −[tex]\frac{20}{4}[/tex]


(E) [tex]\frac{-4}{20}[/tex]


(F) [tex]\frac{-20}{-4}[/tex]