Andrei si mihai cantaresc impreuna 76 kg, mihai si rares cantaresc impreuna 78 kg, iar andrei si rares cantaresc impreuna 82 kg. cate kg cantareste fiecare?

Me asap! what is the slope of this line? enter your answer in the box.

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

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?