a thief is robbing a store that has n items. the ith item is worth dollars, weighs pounds and can be grabbed in time, where , and are integers. he wants to take as valuable a load as possible, but he can carry at most pounds in his knapsack, and can only spend time before the police arrive. which items should he take to maximize the total value? all values involved are integers.

Explain how earth is like a giant bar magnet. how is our magnetic field made?

An ecosystem is shown in the illustration. assume that human activities have led to a decrease in the number of eagles. a virus attack on rabbits has led to a decrease in their population in the ecosystem. which two sentences describe likely effects on the ecosystem? 1. there’s an increase in the number of snakes and insects and a decrease in the number of frogs. 2. there’s an increase in the number of snakes and insects, and the storks face increased competition for food. 3. there’s an increase in the number of storks and a decrease in the number of snakes and insects. 4. there’s an increase in the number of frogs and a decrease in the number of storks and insects. 5. there’s a decrease in the number of snakes, insects, and frogs.

In anton chekhov’s the proposal, lomov talks about how much land he owns instead of making romantic gestures while trying to propose to natalya. which idea influences lomavs behavior