Hello!
First you have to find the volume of the cylinder
To find the volume of a cylinder you use the equation

V is volume
r is radius
h is height
Put in the values you know and 3.14 for pi

Square the number
V = 3.14 * 9 * 7
Multiply
V = 197.82
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Next you find the volume of the sphere
To find the volume of a sphere you use the equation

V is volume
r is radius
Put in the values you know and 3.14 for pi

Cube the number

Multiply
V = 113.04
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Finally you subtract the two volumes from each other
197.82 - 113.04 = 84.78
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The answer is C)84.78
Hope this helps!
Answer:
14 feet
Step-by-step explanation:
There are 3 feet in 1 yard, so 36 feet in 12 yards. The remaining ribbon will be the original amount less the amount used.
36 - 22 = 14 . . . . feet remaining
It depends on what level of classes you take, but algebra classes in college do tend to be harder than algebra classes in high school or middle school.
The value of x is 28 .
<h3>What is a Triangle ?</h3>
A triangle is a polygon with three sides , three angles and three vertices.
According to the Proportionality Theorem
When a line is parallel to one side and intersects the other lines at two different points then it divides both the line in similar ratio.
As in the given figure DC is parallel to AP ,
then RD : DP = RC:CA
42:15 = x: 10
42/15 = x / 10
x = 42 * 10 /15
x = 28
Therefore the value of x is 28 .
To know more about Triangle
brainly.com/question/2773823
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