Zelma's friend told her that she could earn $54 for cleaning up after a birthday party. Zelma wants to calculate the hourly rate. If she works a total of 4.5 hours, the equation 4.5x = 54 can be used to
determine her hourly rate. What would Zelma's hourly rate be, in dollars?
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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?