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Laura's walking speed is 4.50 feet per second.

What is Laura's walking speed?

Speed is the total distance travelled per time. Speed can be determined by dividing the distance walked by Laura by the time.

Average speed = total distance / total time

54 / 12 = 4.50 feet per second

To learn more about speed, please check: https://brainly.com/question/21734785

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