81 because each person has 9 people to greet and there’s 9 people so 9x9=81
The goal of school health nursing programs is health promotion through the school curriculum. A class on nutritional planning for parents contributes to health promotion. Disease management is one of the many programs of community health centers.
The main thing which the feudal system was based on was land ownership.
<h3>What is Feudalism?</h3>
This refers to the social system that was mainly used in medieval Europe where a lord gave land to his vassals as a reward,
Hence, we can see that your question is incomplete so a general overview of the feudal system was given to help you get a better understanding of the concept.
Read more about feudalism here:
brainly.com/question/4141227
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