What is the value of x when the richter scale rating is 8.7?

Any greatly appreciated! you in advance. 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's 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? a.$65.00b.$5288.00c.$210.00d.$310.00

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83

What is the approximate mark up percentage rate before m equals $1740 marked up from p equals $19,422