Solve for the length of KM. ​

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

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Solve 3x-18=2y and 5x-6y=6 by elimination show work