For v^n = z, if z = 1, then v is an nth root of unity.
True or False?

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

What is the perimeter of an equilateral triangle if each side is (x+3)?

Jody bought 20 shares of amazon at the close price of $121.00. she bought 20 more shares a year later at the price of $127.00. two years later, she sold all of her shares at the price of $133.00. her broker charges $50 for each transaction. after all of these transactions, how much money did jody make?