Answer:
The initial velocity of the runner was 4 m/s, and the runner stopped after 8 seconds.
Step-by-step explanation:
3 to the 4th power is 81, 3 times itself 4 times.
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They would be putting 840 each year, so each of them will be putting 420.
Each side would be = square root of 64 which is 8m
Perimeter = 8 * 4 = 32 m.