Give the step-by-step reasoning process and then the final answer. Jack says he has 13 more notebooks in his bag than Gerald. Jack gives 5 notebooks to Paula and 6 notebooks to Mike. If Gerald has 8 notebooks, how many notebooks does Jack have left?
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Jack had 13 more than 8 notebooks for a total of 13 + 8 = 21 notebooks. He gave 5 notebooks to Paula so he has 21 - 5 = 16 notebooks left. He gave another 6 to Mike so he has 16 - 6 = 10 notebooks left.
The final answer: 10.
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