Define 5 uses of using Signature Files in computing and networking?

So im doing this school challenge and the teachers said whats the average text a student gets a day so i need to get about 20 in a day but dont know how can you guys 2163371293

In a word processing program, such as microsoft word, which feature to you choose the desired picture enhancement?

When is it most apprpriate for a development team to change the definition of done