Are you sure your school requires a 70? That seems pretty high considering a perfect score is an 80. In regards to tips for the test I passed using IC, Wikipedia, and the Peterson practice tests. As for the practice score...for a Peterson's I normally aim for the sixties, but that is to get a 50 (most school's passing score). Oh, and be sure to check out the Specific Feedback Section! Good Luck.

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BSBA Marketing Thomas Edison State College-63/120

College Math-66, College Algebra-64, Analyzing & Interpreting Literature-67, U.S. History I-66, U.S. History II-61, Information Systems & Computer Applications-59, Biology-61, DSST Introduction to Business-61, Introductory Sociology-65, Introductory Psychology-52, Principles of Microeconomics-54, Principles of Macroeconomics-47, Principles of Marketing-68, Financial Accounting-47, Introductory Business Law-62, Principles of Management-70, DSST Principles of Supervision-64, DSST Organizational Behavior-68, English Literature-61