Jean- baptiste say argued that entrepreneurs should be called the fourth factor of production because they a) organize the other factors b) have historically been successful c) are motivated by the desire to make a profit d) can over come scarcity by making new choices

Which graph represents motion with an object with positive velocity that is located at a position of 3 meters at a time of 0 seconds? a) a b) bb eliminate c) c d) d

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?

Properties seen when one one substance changes to another are known as properties