A word that means conclusion and starts with "r" is "resolution." In various contexts, it refers to the final decision or outcome reached after consideration or deliberation. It can also imply a determination to resolve an issue or a commitment to a course of action.
rule = regulation
radius
r is the symbol for rate
A regular polygon
The answer depends on what you mean by "r values".
An Egyptian word that starts with a r is Ramses
A word that starts with S and ends with X is sphinx.
dictator
SMILER - There is a mile between the s and the r!
A word that starts with an R that describes you is responsible.
repulsive
respiratory
riet
respiration
Revenue
repast
rondeau