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Mathematics, 22.01.2020 01:31 skrillex88

On serena's 10th birthday her mom was 3 times serena's age. how old will serena and her mom be when her mom's age time 0.5 equal serena's age

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On serena's 10th birthday her mom was 3 times serena's age. how old will serena and her mom be when...
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