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▹ Answer

4 feet in 1 second.

▹ Step-by-Step Explanation

[tex]\frac{80 ft}{20 s} \\\\[/tex]

Divide the numerator and denominator by 20

[tex]\frac{4 ft}{1 s}[/tex]

This means 4 feet in one second.

Hope this helps!

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Answer:

80 feet per 20 seconds is the same thing as 8 feet per 2 seconds, or 4 feet per second.

That is the same as 240 feet per minute, and 14,400 feet per hour. 4,800 yards per hour. 2.72772727272 miles per hour.

Hope this helps!