4 unit rate is 124. 5 unit rate is 16 6 unit rate is 60
Answer:

Step-by-step explanation:
Let
.
and

The graph of the two equations are shown in the attachment.
The points where the two graphs intersected are: 
The x-coordinates of the intersection points are the solutions to
.
Therefore the solutions are: 
Answer:
The average rate of change of Demand between 40 and 175 units sold is of -0.1045.
Step-by-step explanation:
Average rate of change:
The average rate of a function f(x) in an interval [a,b] is given by:

In this question:

What is the average rate of change of Demand between 40 and 175 units sold?
. So


So

The average rate of change of Demand between 40 and 175 units sold is of -0.1045.
Answer:
View Image
Step-by-step explanation:
View Image
Answer:
1.5
Step-by-step explanation: