Classrooms on one side of the language arts building are all numbered with consecutive even integers. If the first room, the room with the smallest classroom number, on this side of the building is numbered x , write an expression in x for the sum of the first classroom numbers in a row. Then simplify this expression

Which polynomial function has x intercepts -1, 0, and 2 and passes through the point (1, -6)

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

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?