<em>Explanation</em>:
Second Quarter Sales budget
<u>Forecasted Physical Exam. (Basic at $95 per exam and Extended at $150)</u>
July
Basic > 240 =95*240=23,040
Extended > 165 = 150*165=25,200
August
Forecasted Physical Exam.
Basic > 250 = 95*250=23,750
Extended > 215 =150*215=32,250
September
Forecasted Physical Exam.
Basic > 80 =90*80 =7,200
Extended > 90 =150*90 =13500
Total Gross Sales
Basic=$53,990
Extended=$70,950
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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:
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