HELP ME PLEASE I'LL MARK YOU THE BRAINEST I honestly will do anything you want its due today pleassse help

The largest city in brazil, sao paulo, has a population of about 11 million. based on the rank-size rule, what is the population of the second-largest city, rio de janeiro, most likely to be? a. 8 – 10 million b. 5 – 6 million c. about 3 million d. about 1 million

What would lead a historian to consider two events to have a relationship of correlation rather than causation?

Which product would have been most likely to have been traded in this area at this time?