Sending SAT and ACT scores to colleges

Hi everyone, I’ve been doing my college applications and I have a question regarding to my sat and act scores. I took the old SAT twice and the ACT twice also. I was only going to submit one of my SAT scores but then I heard from other people that I need to submit all of my SAT and ACT scores, so is this true? Also, I’m applying as a math major to UT. I did get very high math scores on both of my SAT and ACT scores, but everything else was relatively low, so should i submit all of my SAT and ACT scores just to show the college my math scores?Thank you very much!

UT requires one or the other with essay.

https://admissions.utexas.edu/apply/freshman-admission#fndtn-freshman-admission-scores-required

Check the requirements for each school.