Plz hurry i promise i will give brainliest and 100 points
each team earns 1 point for each person who participated in the track-and-field day. who wins the meet—the eighth graders or the seventh graders? explain. (2 points)

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?