SAT and ACT HELP!!!!!!

<p>Some colleges require SAT Reasoning plus 2 Subject Tests or ACT only. I am in a really tight situation as I don’t think I am going to do well on my Subject tests this Saturday SATII Math 2C (650-700) and US History (I don’t think I can finish the book). Should I just say screw it to the SAT and submit only my ACT scores?
ACT Scores:
English: 34
Math:33
Reading: 28
Science: 32
Essay: 11
Composite: 32
Superscored:33</p>

<p>SAT Scores: </p>

<p>Reading:690
Math:740
Writing: 700
Essay: 11
Total: 2130
Superscored:2140</p>

<p>If I submit my ACT only, what scores do they use to replace my missing subject tests?</p>