Answer:

Step-by-step explanation:
Given
See attachment
Required
Determine the slope of the line
From the attachment, we have the following points

and

The slope m is then calculated using:

Substitute values for the x's and y's




<em>Hence, the slope is 0</em>
A decade is 10 years which means 1/5 is 2 years. thus making 2/5 4 years.
Hi there! The word "difference" means to subtract. -2 - -6=4. Therefore, it would be the last one.