Which best describes the orthocenter of a triangle? • A. The point where the three altitudes of the triangle intersect
• B. The point where the three angle bisectors of the triangle intersect
O C. The point where the three medians of the triangle intersect
O D. The point where the perpendicular bisectors of the three sides of
the triangle intersect

Which term best describes the association between variables a and b

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?

The balance of susu's savings account can be represented by the variable b. the inequality describing her balance b > $30 . which could be a solution to the inequality?