1. the electrical resistance R of a wire varies directly as it's length land inversely as the square of it's diameter

2. simplify (36mny)⁰

3.simplify
[tex]12 \sqrt{7 - 2 \sqrt{7} } [/tex]
4. simplify
[tex] 3 \sqrt{81} [/tex]
5. P varies directly as the square of x and inversely as s.

6.what is the radical form of
[tex]y \frac{4}{5} [/tex]
7. which is an example of a direct variation
a.
[tex]xy = 10 \\ y = \frac{2}{x} \\ y = 5x \\ \frac{2}{y } = x[/tex]
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