<p>Depends on the school. The common data set at each school (section C) will tell you if the school considers the SAT and ECs in the admission process. There is a group of schools that doesn’t even consider SATs. [Optional</a> List | FairTest](<a href=“http://www.fairtest.org/university/optional]Optional”>ACT/SAT Optional List - Fairtest) Alternatively you can try the ACT which is a different type of test.</p>
<p>Only the very very selective schools care anything about ECs. Since you don’t seem to be considering them, just focus on GPA and SAT prep. Do the ECs you enjoy.</p>
<p>Also many schools don’t require essays and admit based on metrics alone.</p>