e4e8bx8v29 e4e8bx8v29 01-12-2021 Mathematics contestada Marty can dig a 10 ft trench in 90 minutes. Chris can dig a 10 ft trench in 110 minutes. If they work together, how quickly could they dig the trench? A)100 minutes B)42.6 minutes C)49.5 minutes D)155 minutes