A bag contains 90 balls. The ratio of the colours red to white to blue is 1:2:3
a) Calculate the probability of choosing:
(i) a red ball
(ii) not a red ball
(iii) a white or a red ball.
b) How many balls of each colour are there?
a

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?