They are using the Dual income and no kids method
Um.. is that a question or just telling us?...
<span>B.Prevent unfair or deceptive business practices.
</span>
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:
$13,532
.00
Explanation:
The cost allocation is usually based on a measurable factor such as area occupied, number of students etc. The more the measurable factor related to a unit/department, the more the cost assigned to the departments on the basis of the size of the measurable value.
Total number of employees
= 640
the amount of cost allocated to Department B under the direct method would be
= 199/640 * $43,520
= $13,532