The triphenylmethyl cation is so stable that some of its salts can be stored for months. Explain why this cation is so stable.

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.

*segment an is an altitude of right ? abc with a right angle at a. if ab = 2root 5 in and nc = 1 in, find bn, an, ac.

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?