What does labeling a problem mean?

The figure above shows the lengths of thesides of a rectangle in cm. find the valuesof x and y and then the area of the rectangle.sides: top= 3x - yleft= 3y + 4bottom= 2x + yright= 2x - 3 use both methods, elimination and substitution, if possible.

Perform the indicated operation. y^2 + 3y - 10 / 3y + 15

Ty received 3/5 of his cds as gifts. if he has 60 cds, how many were gifts. explain: