Please help if you can! :)

The triangles are similar. what is the value of x? x=

An eight-sided die, which may or may not be a fair die, has four colors on it; you have been tossing the die for an hour and have recorded the color rolled for each toss. what is the probability you will roll a brown on your next toss of the die? express your answer as a simplified fraction or a decimal rounded to four decimal places.

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are: