Mathematics, 23.02.2020 21:08 wowihavefun

Washing his dad's car alone eight year old Levi takes 2.5 hours. if his dad helps him, then it takes 1 hour . how long does it take the levi's dad to wash the car by himself?

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Washing his dad's car alone eight year old Levi takes 2.5 hours. if his dad helps him, then it takes...