Answer:
3391.2
Step-by-step explanation:
The formula for the volume of a cylinder is
pi * r^2 * h
Plugging the values in we get
3.14 * 6^2 * 30
= 3.14 * 36 * 30
= 3391.2
Your parabola should look like this image. The vertex is at (-1, 9), and you can use any of the x-intercepts (-4, 0) & (2, 0) or the y-intercept (0, 8) as a second point.
It’s backwards !! So I can’t see what I can help you with

Write 1 2/3 as an improper fraction...
1 = 3/3. Plus the 2/3 makes 5/3.

To add/subtract fractions, they need the same denominator. (bottom number)
We can change the denominator by multiplying the top and bottom of a fraction by the same number. (it will stay equal, like 1/2 and 2/4)
Let's change 5/3 and 3/4 to a denominator of 12.
5/3 = 20/12 (bottom multiplies by 4, so does the top)
3/4 = 9/12 (bottom multiplies by 3, so does the top)

Now we just subtract the 20 minus 9 twelfths. (the twelfths act as a sort of unit)