The most reasonable value of n n = -2.
We have given that the length of the football field = 300 feet
It can also be expressed as approximately 
<h3>What is the value of one mile in feet?</h3>
Also, 1 mile = 5280 feet....(1)
We have to find 1 feet so divide both side of equation (1)by by 5280 we get,

Now, for 300 feet is,


In scientific notation we have,

Therefore we get n = -2.
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