How do write y×2×1 in its simplest form​

Which expression is equivalent to 4 square root 6 divided by 3 root 2

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

What are the sotions to the quadratic equation 9x^2=4