For SAT prep please visit these sites:

KAHN Academy:    https://www.khanacademy.org/?gclid=CPLM8JztnMgCFRRcfgodsb0JNg#

SAT College Board: https://sat.collegeboard.org/practice

Amazon:     http://www.amazon.com/Official-SAT-Study-Guide-Second/dp/0874478529/ref=sr_1_1?s=books&ie=UTF8&qid=1443551247&sr=1-1&keywords=sat+prep+2015