Permutations and Combinations

Test Preparation SAT Preparation
1

<p>How do you do those ?</p>

2

<p>i forget…i havent done them since sophomore year but i think i need to know too. isnt there usually a problem or two on basic to intermediate P/Cs?</p>

3

<p>This is a pretty good guide.</p>

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4

<p>thanks bunches!</p>