The SAT Test is written by The College Board.  They are a big company and have 8 practice tests online, they have the answers and explanations, and they will tell you how to calculate your score based on well you do on the practice tests.  Here is their link:

Practice Test Calculator Section Part 2

SAT Practice Test 8

We are starting backwards.  We will do practice test number 8, then work our way back.

This is part one of practice test number 8:

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Practice Test Calculator Section Part 3

Mr. Lake's Math Site

​Part 2 is here:

​With the outtakes in it:

Practice Test Calculator Section Part 1