What number is: a composite, has 4 factors and some of it's multiples are 44 & 88?

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

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?