Pre-Calculus

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I need some help with...

I need some help with the following math questions:

1. Find the volume of a cone whose slant height is 13 inches and whose base is 7 inches in radius.

2. Simplify the following expressions

A (22ab + 33ab – 44b) ÷ 11b

B (4x² - 7x²)(2x³ + 4x³)

C (2ab² + 3ab²)(15a²b – 5a²b) ÷ 10

3. John wants to enclose a rectangle area that is 10x12 ft in his backyard for a patio. The type of fencing he is using comes in 5 ft wide pieces.How many pieces does he need to buy to enclose this area?

1. Find the volume of a cone whose slant height is 13 inches and whose base is 7 inches in radius.

2. Simplify the following expressions

A (22ab + 33ab – 44b) ÷ 11b

B (4x² - 7x²)(2x³ + 4x³)

C (2ab² + 3ab²)(15a²b – 5a²b) ÷ 10

3. John wants to enclose a rectangle area that is 10x12 ft in his backyard for a patio. The type of fencing he is using comes in 5 ft wide pieces.How many pieces does he need to buy to enclose this area?

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