The record height of a man to date is 8 feet 11 inches (107 inches). if all men had identical body types, their weights would vary directly as the cube of their heights. assume that all men do have identical body types. if a man who is 5 feet 10 inches tall (70 inches) weighs 175 pounds, approximately how much a man with a height of 9 feet 1 inch (109 inches) weigh?

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?