SHOW how to use vertical addition to add 5x^2 - 9x - 8 + (3x -6 + 2x^2) DO NOT SOLVE

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

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?

6cm10 cma conical paper cup has dimensions as shown in the diagram. how much water can the cup hold when full?