Find the value of X in the triangle shown below

Need on this geometry question. explain how you did it.

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

The box plots show the average speeds, in miles per hour, for the race cars in two different races. which correctly describes the consistency of the speeds of the cars in the two races?