What is the perimeter of abc with vertices at a(-11,4),b(-7,8),and c(-4,4)? round only your final awnser to the nearest tenth

The caste system in india was used for what purpose? a) to ensure that all people had an adequate income b) to prevent the rich from taking too much power c) to provide social control and conformity according to one’s birth d) to draft a military capable of defending india from mongol invasion