The shipping activity at Novelty Company uses three labour resources: pickers,

wrappers, and shippers. Pickers are paid $120 per day. Wrappers are paid $180 per

day. Shippers are paid $150 per day. All workers work 8 hours a day and are allowed 30

minutes for lunch, a 15minute break in the morning, and a 15minute break in the

afternoon. The shipping activity for order 229 will require 28 picker minutes, 14

wrapper minutes, 7 shipper minutes. What is the total cost of the shipping activity for

order 229?

a. $7.50

b. $14.44

c. $16.50

d. None of the above

answer is c, how to solve ?