7girls or 5 boys can do a piece of work in 37 days if then in how many day does 7 boys and 5 girls can do double of that work?

Which anatomical feature would you expect to find in the fossil remains of a nocturnal species?

Read the article titled "trans-saharan migration routes to north africa and the eu: historical roots and current trends." why do tens of thousands of sub-saharan africans try to cross the mediterranean each year? how are these refugees commonly portrayed? (site 1)

Is a state government creates a new tax to fund schools a example of checks and balances