Answer: x = 45/7
Step-by-step explanation:
The answer would be 1/6 assuming a fair trial
Let N be the number of items sold and p the price.
Since the variation is inverse, then the relation between N and p is:

For N=20000 and p = $9.5, we get the formula:

If p = 8.75, then the number of items sold can be computed using the formula:
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


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400.00 in scientific notation would be 4×<span>10^2</span>