What is the solution of the matrix equation? [x y] = [0 1 1 2] [7 -3]

The movement known as stressed the power of imagination and dreams over conscious control.

States might choose to cooperate at the regional or global level for all of the following reasons except (2 points) a.) to gain regional political influence b.) to engage in dispute resolution c.) to assure basic human rights d.) to encourage economic interaction e.) to increase national sovereignty

Why is it essential to operationally define the variables in a study?