how to solve proper time

  1. how to solve proper time interval?Proper length?thank you:D
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    2. Meg asked by Meg
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  2. To help prevent injury, each time you participate in a vigorous activity you should be sure to include a(1 point) Responses
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    2. no asked by no
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  3. To help prevent injury, each time you participate in a vigorous activity you should be sure to include a (1 point) Responses
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  4. To help prevent injury, each time you participate in a vigorous activity you should be sure to include a(1 point)Responsesproper
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    2. chi soccert asked by chi soccert
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  5. To help prevent injury, each time you participate in a vigorous activity you should be sure to include a(1 point) Responses
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    2. Boo <3 asked by Boo <3
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  6. To help prevent injury, each time you participate in a vigorous activity you should be sure to include a(1 point) Responses
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  7. To help prevent injury, each time you participate in a vigorous activity you should be sure to include a(1 point) Responses
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  8. To help prevent injury, each time you participate in a vigorous activity you should be sure to include a(1 point) Responses
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    2. hhv v v vhh vh vhvfy asked by hhv v v vhh vh vhvfy
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  9. To help prevent injury, each time you participate in a vigorous activity you should be sure to include a(1 point) Responses
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  10. To help prevent injury, each time you participate in a vigorous activity you should be sure to include a(1 point) • proper
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