Queens Meadow Bank charges a monthly maintenance fee of $13 and a check-writing fee of $0.07 per check or EFT. Last year, Mark
made 289 payments from his account at Queens Meadow. What was
the total of all fees he paid on that account last year?

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?