Ann started reading at 4: 00 p. m. and finished at 4: 20 p. m. through what fraction of a circle did the minute hand turn?

What is the square root of 45? (step by step working plz)

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

The graph of y x3 is translated so that the point (1. 1) is moved to (1, 4). what is the equation of the new graph?