In a certain city , the hourly wage of workers on temporary employment crontracts is normally distributed. the mean is $15 and the standar deviation is $3. what percentage of temporary workers earn less than $12 per hour? a) 6% b) 16% c) 26% d) 36%

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

12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart

Math i have no idea how to do a and b