The number of days in which the air quality index exceed 100 in the year 1988 is 75 days. Then the correct option is B.
<h3>What is a function?</h3>
The function is an expression, rule, or law that defines the relationship between one variable to another variable. Functions are ubiquitous in mathematics and are essential for formulating physical relationships.
The air quality index (AQI) is given by the function.

Where n be the number of days the AQI exceeds 100 in a given year.
For
, then we have

More about the function link is given below.
brainly.com/question/5245372
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Formula
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Find Area
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Answer: Area = 88m²-----------------------------
4h+3=The Pay of Shea
3.5h +6= The pay of Kelly
4h+3=3.5h+6
-3 -3
4h=3.5h+3
-3.5h
.5h=3
*2 *2
h=?
Then stick "h" into one of the original equations and solve for someones pay to get "p"
3.5(h)+6=p OR 4(h)+3 =p
The variable X (percentage) over 100 and 23 over 80.
Answer:
Your answer is only by color! Hope this helped!!