Answer:

Step-by-step explanation:
In the Equation it asks for 3 things; pi (3.14), r (The radius), and h (the height).
In the question, it says that the radius is 1 foot and that the height is 4 feet. From there all you need to do is insert those numbers where it's shown in the equation. This makes the equation go from this:

To this: 
From there you follow PEMDAS/GEMDAS. And should have your answer.
Answer:
a) +2.05 -2.75, opposite is August
Step-by-step explanation:
Okay! Since these are similar figures we need to find the scale factor in order to answer this question.
We have a triangle with sides 7, 4, and 9. The longest side is 9. This corresponds with the longest side on the similar triangle, which is 36. So to find the scale factor we divide 36 by 9. The scale factor is 4.
Now to find the shortest side of the bigger triangle, we have to find the length of the shortest side on the smaller one which is 4. Since our scale factor is 4, we multiply 4 by 4 to get 16.
The length of the shortest side of the similar triangle is 16
Unfortunately, there is no way I can find the value of X and Y because there is no question for it.
You can either find the value of X and Y in the problem or make X and Y your own value if you need to find something that is equivalent.
I hope this helped.