Submitting SAT Subject Tests

My senior only took two SAT subject tests and I am quite doubtful if two is enough. Math subject test score is pretty decent but Biology score I think is not competitive enough. But reporting only math score to prospective colleges seems kind of weak.

In case wondering stat is as follows:
GPA UW - 3.98
ACT - 34
SAT old - 2120
SAT Bio - 680
SAT Math - 730

All the tests were taken only once thus nothing super score. I understand some schools require all test scores to be self reported and sent directly from the testing agencies.

But for those schools where we have options to report, do you think it is a good idea to report only ACT with only SAT Math?

Thank you.