Plz plz me i need your plz me i’m begging you so much plz plz me i need your plz me

How far is x from 5 on a number line?

Negative 5 1/12 + negative 4 1/4 + 6 3/4

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?