Question about math SAT curve

<p>I got a 670 on my math SAT section and was quite disappointed. On the PSAT math was my best score and on the SAT it was my worst. Also, I actually thought I did fine.. at least low 700s.. walking out of the test. Anyone know if there was a bad curve or something?</p>

<p>Also.. does anyone know if you can get your essays rescored or see comments that your grader made? I had a 3 example strong paper and got an 8 out of 12. Weird...</p>