F5. Kimberly wrote 9 papers for her psychology class. She wants to put 7 papers in her portfolio and is deciding on what order to put them in. How many different ways can Kimberly arrange her papers?

Ill give you free points and brainliest if you me with the correct answer every time you hit the brakes, you are attempting to overcome a. potential energy b. kinetic energy c. static electricity d. the force of impact

How do astronomers measure the amount of dark matter in the universe

Working to improve the working conduit a factory is an example of