Valerie and bret have a total of 24 dog show ribbons. bret has twice as many ribbons as valerie how many ribbons does each have

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The moats separating people from the animals are 5 m wide for lions and 4 m wide for the elephants. if the lion’s moat is 4 m deep, how deep should the elephants’ moat be?

Ineed the solution to this problem and the steps.