Can somebody help me

Fast! find the length of cu. the triangles are similar. show your work.

Find a third-degree polynomial equation with rational coefficients that has roots -2 and 6+i

Nour and rana are shopping for a christmas tree. they are deciding between 2 22 different types of trees (real and fake) and 4 44 colors for the ornaments (white, silver, gold, and purple). they each created a display to represent the sample space of randomly picking a type of tree and a color for the ornaments. whose display correctly represents the sample space?