Answer:
a) 
b) 
c) For this case we have the total sales $ 15 millions after t =4 months
d) 
e) This value represent the increase in the amount of sales in millions after t=4 months
Explanation:
For this case we have the following function for the sales

Part a
For this case we want to find the derivate of S respect to t and we got:

Part b
For this case we want to find the value of S when t = 4 so if we replace we got:

Part c
For this case we have the total sales $ 15 millions after t =4 months
Part d
For this case we just need to replace t=4 in the derivate and we got:

Part e
This value represent the increase in the amount of sales in millions after t=4 months
Answer:
CO-BRANDING
Explanation:
Also known as brand partnership, it is a marketing strategy that incorporates multiple brands on a good or service. It involves the brands of at least 2 organisations. Just like the Lexus and coach described above.
Answer: c. machine hours.
Explanation:
In reference to Automated Operations, the Activity base that is usually used to in determining a pre-determined overhead rate are Machine hours.
It is standard practice to relate overhead to the Direct Labor involved in the production of a commodity and since in this case the direct Labor mostly consists of Machines (Automated) then it is best to relate activities to the Machine hours involved instead.