Answer:
1501.63ft is required answer m
The answer to finding x is -2/3 or 4/3
Total number of pairs = 24 pairs.
Total cost of 24 pairs = $800 approximately.
Cost of each pair = 
Plugging values in the above formula, we get
Cost of each pair = 
If we divide 800 by 24, we get 33.33 approximately.
But in the given problem, estimated cost is given $28 per pair.
If we subtract 33.33-28, we get $5.33.
So, the estimated cost is $5.33 each pair less than the actual cost of each pair.
Therefore, $28 per pair is not a good estimate of the price.
Count on the numbers and then you'll get 10 as your answer
(24,18)(28,21)
slope(rate of change) = (21 - 18) / (28 - 24) = 3/4 <==