Katie is married with an annual salary of 66806 and gets paid once every two weeks per paycheck how much will be withheld for Medicare? Round to the nearest cent.

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

Which of the binomials below is a factor of this trinominal? x^2-13+30

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?