elena agrees to finish a knitting project for a friend. the graph shows the number of rows elena completes compared to the amount of time spent knitting. assuming she worked at a constant rate, how many rows had been completed before elena started working?

Which of these international trade concepts results in specialization and trade increases in total world output? a) absolute advantage b) balance of payments c) absolute advantage d) international tariffs

Which statements are true for invasive species? 1. they always stabilize an ecosystem. 2. they’re always successful in adjusting to a new habitat. 3. they often compete with the native species for resources. 4. they have the ability to displace the native species. 5. they’re always pests.

Essay on sustainable development of soiciety