how do you find the surface area and volume?

Of what?

http://math.about.com/library/blmeasurement.htm

if Troy decides to give to give one-fourth of his Baseball cards to his brother and one-sixth of his Baseball cards to his cousin, what fraction of his cards will he have left?

sorry it is a question not a answer but can you help me with it

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To find the surface area and volume of a solid object, you need to know the mathematical formulas specific to that object. These formulas vary depending on the shape of the object. Here are some common formulas for finding the surface area and volume of basic geometrical shapes:

Cube:
- Surface area = 6s^2, where s is the length of one side.
- Volume = s^3, where s is the length of one side.

Rectangular Prism:
- Surface area = 2lw + 2lh + 2wh, where l is the length, w is the width, and h is the height.
- Volume = lwh, where l is the length, w is the width, and h is the height.

Cylinder:
- Surface area = 2πr^2 + 2πrh, where r is the radius and h is the height.
- Volume = πr^2h, where r is the radius and h is the height.

Sphere:
- Surface area = 4πr^2, where r is the radius.
- Volume = (4/3)πr^3, where r is the radius.

Once you know the shape of the object and have the necessary measurements (such as side lengths, radius, or height), you can plug in the values into the appropriate formula to calculate the surface area and volume of the object.