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Answer:
Option A. is correct.
Step-by-step explanation:
Given: A cell phone company recently noticed a [tex]26\%[/tex] sales decrease in the month of July compared to June such that [tex]n[/tex] represent June's sales.
Also, [tex]y[/tex] represents July's sales.
To find: equation that can be used to determine the sales in July
Solution:
June's sales [tex]=n[/tex]
Decrease in sales [tex]=\frac{26}{100}n=0.26n[/tex]
So,
July's sales [tex]=n-0.26n[/tex]
Also,
July's sales [tex]=y[/tex]
Therefore,
[tex]y=n-0.26n[/tex]
So, option A. is correct.