The drawing shown contains the intersection of two lines.
The measure of /1= 20x + 21 and the measure of /2 30x - 29
a Wite an equation to determine the measures of determine
Detenime the measures of both amules Show your work

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?