Who wants to be in a meet with me?

List the 10 possible samples (without replacement) of size 3 3 that can be obtained from the population of five officials.

Iwill make brain if you me correctly fill this out needs due today pls and send it back to me (click the link and you will get it)

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?