Goods with the highest opportunity costs are more efficient to produce true or false

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 was the result of delegates from the democratic party not being able to nominate a candidate in 1860

What country was the philippines declaring independence from in this proclamation?