What is twice a number is decreased by 72 is five times the sum of the number and three times the number

multiply 2 x 72 =144

subtract  144 - 72 = 72

multiply 5 x 72 =360

multiply 3 x 360 = 780

 

Okay so there are 8 employees and 200 calls per hour for all in 8 hours then all you need to do is multiply the 200 calls per hour by the 8 employees
200 divided by 8 is 25 and 25  times 8 is 200 so each employee makes 200 calls in their work day 
i really hope i helped you out in some type of way :)))