How many states are west of mississippi river?
http://www.google.com/imgres?imgurl=http://www.fhwa.dot.gov/congestion/state_information/images/us_map.gif&imgrefurl=http://www.fhwa.dot.gov/congestion/state_information/index.htm&h=424&w=625&sz=13&tbnid=fv4H4Nh3nK8J::&tbnh=92&tbnw=136&prev=/images%3Fq%3Dus%2Bmap&usg=__pXIgFKLyOdRtpVDyklEOaFASZYA=&sa=X&oi=image_result&resnum=4&ct=image&cd=1
Count them, and let us know what you think.