i think the answer is the first one
Given a triangle (3 sides), a hexagon (6 sides) and a nonagon (9 sides).
The sides increases by 3 and the equation that represents the pattern is 3n.
Therefore, the <span>expression that represents the number of sides in the polygon for the nth member of the pattern is 3n.</span>
Answer:

Step-by-step explanation:
Remember that slope, or in this case pitch, is equal to rise divided by run. In other words:

where m is the slope.
From looking at the image, we can see that the rise 21 feet and the run is 24 feet. By plugging this information into the equation, we get:

So the slope, or pitch, of the roof id 7/8.
I hope you find my answer and explanation to be helpful. Happy studying.
Answer: x=7.5
Step-by-step explanation:
If you are trying to solve for x, then
4x+5<=13
subtract both sides by 5
4x<=8
then divide both sides by 4
x<=2