My 12 year old needs a simple solution to blue book math problem: page 657 #18

<p>you guys are funny, my mom told me i had the SAT the night before i took it. I had no idea what it was. 2120 got me into an ivy.</p>

<p>i didnt no what an sat was till a month or two ago (canada)... going to try prep hard now tho for the january one</p>