Answer:
????????????
Step-by-step explanation:
Answer: 0.72
Step-by-step explanation:
Given: 18 out of every 25 shoppers between the age of 18 and 34 research purchases online before going to a store.
Fraction of shoppers between the age of 18 and 34 research purchases online before going to a store 
In decimal , 
Hence, this value written as a decimal = 0.72
Answer:
A. The graph of the function increases and decreases over its domain.
Step-by-step explanation:
The graph is attached. Some places, it has positive slope (is increasing); other places it has negative slope (is decreasing).
Using it's concept, it is found that the average rate of change of this function over the interval of time from 30 days to 60 days is of 0.4 insects per day.
<h3>What is the average rate of change?</h3>
- The <em>average rate of change</em> of a function f(x) over an interval [a,b] is given by the <u>change in the output divided by the change in the input</u>, that is:

In this problem:
- The inputs are of 30 and 60 days, hence
.
- At day 30, there are 20 insects, hence
.
- At day 60, there are 32 insects, hence
.
Then:

The average rate of change of this function over the interval of time from 30 days to 60 days is of 0.4 insects per day.
You can learn more about the average rate of change at brainly.com/question/25775946