I don't know exactly how to find the RC[ 1 ] of 80, or the RC of 30. Can someone explain how to find them?
Here is a picture of the problem I am having with two questions.
Your question missing some information about the source, however, one can give an answer based on S-AES i.e. Simplified AES.
There is a nice definition of S-AES here.
i 1 2 3 4 5 6 7 8 9 10 RC[i] 01 02 04 08 10 20 40 80 1B 36
S-AES has defined only 2-rounds, thus the designers of S-AES have to choose only; two RC values. This is just a selection issue, not a generation as in AES-key schedule.
Note: S-AES is only an oversimplified AES for educational use.