Lily swims a 100-meter race. She swims the first half in 27.8 seconds. She swims the second half and 30.12 seconds. About how long does it take Lily to swim the second half
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The answer to your question is 57.92 because when you add 30.12 and 27.8, you get the answer of 57.92, and when you estimate it, you get an estimate of 58. Estimate/Answer: 58
