Why is my big bro s annoying answer PLZ ANSWER don't just write something plz tell me

The triangles are similar. what is the value of x? show your work.

Miguel’s teacher asks him to color 4/8 of his grid. he must use 3 colors: red, blue, and green. there must be more green sections than red sections. how can miguel color all the sections of his grid to follow all the rules

For what value of (y) is 3^3/3^y =1/9