tan A should be the corner try work out work out:

first and then add all the others (B=90)
Explanation:
A and C should be the same
In exchange for land, a knight agrees to be a sort of sub-vassal to a vassal. This agreement was known as Subinfeudation
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Answer: Option 4
<u>Explanation:
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In the feudal system, the knights were granted the potion of land for their usage in return for their services to the feudal tenants or other superiors. In a way, it was a mode of paying fees to the knights and this agreement was named as subinfeudation and the holding was called as sub-fee.
This practice was prevalent until 1290 when the statute of Quia Emptores was passed which outlawed this practice of paying the knight’s fee in terms granting a piece of land.
Since these 2 acts allowed citizens of the US to be tossed out of the country, or locked up, without due process, political opposition came into play, and individuals that could have made a good contributions to the USA were forced out of the country.
Answer:
first person of color to serve as vice president
Answer:
Energy flows through an ecosystem in only one direction. Energy is passed from organisms at one trophic level or energy level to organisms in the next trophic level.
Explanation: