Answer:
c
i think
Step-by-step explanation:
G(f(4)) = g(4-7) = g(-3) = (-3)² = 9
g(f(4)) = 9
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
Answer:1. true and 2.true
Step-by-step explanation:
Hey , here is the answer to ur question.....!
Given: Radii is in the ratio 3:4
To find : ratio of Surface area of the two distinct spheres
Solution: Surface area of a sphere =4* pi *r^2
=>(3/4)^2=9/16
Therefore , the ratio of the areas of teh two distinct spheres=9:16
Hope this helps u!!!!!!.........