<p>for everyone who has that blue official sat study guide book, how do i do number 18 on page 476? Also, how do you do other problems that involve "combinations"</p>
<p>for everyone who has that blue official sat study guide book, how do i do number 18 on page 476? Also, how do you do other problems that involve "combinations"</p>
<p>someone plz...</p>
<p>See this</a> thread</p>