Answer:

And then we can use for example the first point
to find the intercept:


So then the linear model for this case should be:

Step-by-step explanation:
For this case we want to find a linear model given by:

Where r = represent the number of readers , t= years after 2000
m = the slope for the model and b the intercept
For this case we can define the following points from the data given:
4 years after 2000
14 years after 2000
We can find the slope with the following formula:

And then we can use for example the first point
to find the intercept:


So then the linear model for this case should be:

Answer:
54
Step-by-step explanation:

Answer:
5n-9
Step-by-step explanation:
You can factor (15n^2-27n) to be (3n)(5n-9). When you divide this expression by 3n, 3n/3n=1, and you are left with just 5n-9. Hope this helps!