What is the simplest form of the expression square root 3 - square root 6/square root 3 + square root 6? Answer fast please

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Mario is constructing a frame for 10 in. by 8 in. photo. he wants the frame to be the same with all the way around in the same area of the frame and photo to be 120 square inches what is the dimension of the frame?

Astocks price gained 3% in april and 5% in may and then lost 4% in june and 1% in july during which month did the stocks price change the most