$12.5 per hour
paid "time-and-a-half" means he is paid 1.5 times original.
So for 40 hours let his hourly wage be "h"
So for hours over 40 (that is 49-40=9 hrs), he gets 1.5h
The total sum would be 668.75 dollars. Thus we can write an equation and solve for the hourly wage (h). Shown below:
So the hourly wage of the service station attendant is $12.5 per hour
if it takes 8 pounds to make 12 divide 12 by 8 and you get 1.5, 1.5 x 16 = 24