Answer:
Job A=40 hours=73.50 job=B=50hours=120.40
Step-by-step explanation:
It is given in the question that cost of pork is $7.99/kg.
It means cost of 1 kg pork is $7.99.
Cost of 2 kg of pork is

And cost of 3 kg of pork is

Therefore cost of 3.5 kg of pork is

No slope i believe. good luck!