I was cyber bullied here on Can someone talk to me so I feel better, please?

Can someone me out here and the tell me the greatest common factor

Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70º. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm

What is the approximate difference in tenths between √12 and √15?