Toby has 3 white shirts, 1 yellow shirt, and 2 blue shirts. He also has 2 pink ties, 1 blue tie, and 2 green ties. If Toby randomly chooses a shirt and a tie, what is the probability he will choose a white shirt and blue tie?

Situation: . find the substance's half-life, in days. round your answer to the nearest tenth. a 11 gram sample of a substance that's used to treat thyroid disorders has a k. value of 0.1247. enter the correct answer n - noekt done no - initial mass (at time t = 0) n - mass at timet k a positive constant that depends on the substance itself and on the units used to measure time t= time, in days