A car's rear windshield wiper rotates 135°. The total length of the wiper mechanism is 22 inches and the length of the wiper blade is 13 inches. Find the area wiped by the wiper blade. (Round your answer to one decimal place.) 30 points offered!!

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?