What is the equivalent expression to 20- (20x0.3)

What did nativists think about chinatowns in the late 1800s?

Which act of the conquistador pizarro was crucial in overthrowing the inca? a. the destruction of the ancient inca city, machu picchu b. the siege of the inca capital near the cuzco valley c. the execution of the last inca ruler, atahualpa d. the unexpected deaths of 3 million inca warriors e. the murder of former inca emperor, huascar

Who was the top of the feudal system hierarchy