What is the solution to the system of equation above?

Apark is in the shape of a rectangle. the park authorities are planning to build a 2-meter-wide jogging path in the park (shown as the shaded region in the image). what is the area of the jogging path? plz

Which expression is not a polynomial?

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?