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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Answer:
high
Explanation:
the most popular time of year at a resort, hotel, or tourist attraction, when prices are highest
The relationship between planned investment and interest rates is that investment spending is inversely related to interest rates.
<h3>How are investment spending and interest rates related?</h3>
Investment spending depends on being able to take loans from financial institutions to sponsor capital projects.
If interests rate are high, there will be less planned investments because the cost of taking a loan will be high. The relationship is there inverse in nature.
Find out more on interest rates at brainly.com/question/26540958.
Answer:
$8,800 favourable
Explanation:
The computation of direct material quantity variance is seen below;
= Standard price × ( Standard quantity - Actual quantity)
= $4 × [(2 gallons × 7,200 units) - 12,200 gallons)
= $4 (14,400 gallons - 12,200 gallons)
= $4 × 2,200 gallons
= $8,800 favorable
Therefore, the direct materials quantity variance for last month is $8,800 favourable