19, 20, & 21 (add them up)
PATHOGEN: in biology, a pathogen in the oldest and broadest sense, it is anything that can produce disease. A pathogen can also be referred to as an infectious agent, or a germ.
Shown below
<h2>Explanation:</h2>
The stairway to a cellar has a slope of -4/3, that is:

On the other hand, the cellar is 2m below the ground. In other words:

So this can be modeled by the equation of the line:

The line has a y-intercept at point (0, -2) and as x increases 3 units y decreases 4 units. So:

Finally, let's draw a line that passes through:

By using graphing tool, we get the line shown below.
<h2 /><h2>Learn more:</h2>
Rules of translation: brainly.com/question/14200511#
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