What is the difference between the benefit principle and ability-to-pay principle?

An educated member of the government

How was slavery in mesoamerica, africa, and the arab world similar? many enslaved people were forced to pledge loyalty to their owners. many enslaved people worked in exchange for protection from foreigners. many enslaved people were captured during war. many enslaved people taught and tutored children.

What does the document of the birtish octopus is an uderlying cause of the world war 1