What is Amicus curiae brief?
What is Appellate jurisdiction?
What is Attorney general?

Explanation:

Amicus curiae brief is someone who is not part of a particular case but he/she is needed to give information or expertise words.

Appellate jurisdiction is the power infested on appellate court to amend, review or over rule a trial court or lower tribunal decision.

Attorney general is term given to the main legal advisor to the government on legal matter

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for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.