Mathematics, 25.01.2020 03:31 lazymarshmallow7

Rosita can wax her car in 2 hours or 120 minutes. when she works together with helga, they can wax the car in 45 minutes. how long would it take helga, working by herself, to wax the car?

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Rosita can wax her car in 2 hours or 120 minutes. when she works together with helga, they can wax t...