What is the distance around the composite figure? 15 in 3. Find the area of the composite figure below. Round your answer to the nearest hundredth 27.5 in 14 in 32 in 26 in

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?