Trudy's father has a large collection of ties. He has 18 ties, and 2 of them are striped. If Trudy's father chose a tie at random, what is the probability that the tie would be striped?

#12 find the value of x. #13 find the value of the variable.

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.