Question 1 Create Triangle ABC by drawing AC AC represents the foreman’s line of sight to the top of the landfill. What is Angle m BAC?

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?

Answer pls man im trying to get out of summer school

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.