F(x) = x2 - 6x + 13 a. (4,0)
b. (0, 3)
c. (3, 4)
d. (4,3)
Please select the best answer from the choices provided

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?