The provided text appears to be a mix of tasks and instructions that are poorly formatted and filled with errors. I'll correct and organize it accordingly:

---

Determine the values of:

15. A
16. B
17. C

\begin{tabular}{|c|c|c|c|c|c|}
\hline
& 1st Month & 2nd Month & 3rd Month & 4th Month & 5th Month \\
\hline
No. of Items & 1 & 2 & 3 & 4 & 5 \\
\hline
\multirow[t]{2}{}{Cost (in \[tex]$)} & 5 $[/tex]\rightarrow$ 200 & & & & \\
\hline
& RG 70 & A & R 11700 & R 14200 & \\
\hline
Selling Price & 24(5) & R 9600 & R 14400 & B & R 21000 \\
\hline
\multirow[t]{2}{
}{Profit} & R 6:4) & & & & \\
\hline
& 22900 & R 5200 & R 7500 & C & \\
\hline
\end{tabular}

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Draw a line graph to represent the above information on the same set of axes. Clearly label your graph and axes.

Is the output increasing, decreasing, or discrete?

Do you think that her business of jackets and coats would remain the same throughout the year for all seasons? Explain the demand for jackets and coats.

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Answer :

Alright, let's go through the problem step by step and calculate the necessary values.

To start, we'll fill in the missing values [tex]\(\text{A}\)[/tex], [tex]\(\text{B}\)[/tex], and [tex]\(\text{C}\)[/tex] based on the given data.

Here is the initial table information reconstructed in textual form for clarity:

1. Month 1: Cost = [tex]\(5 \rightarrow 200\)[/tex], Selling price = [tex]\(24 \times 5\)[/tex], Profit = 22900
2. Month 2: Cost = [tex]\(11700\)[/tex], Selling price = [tex]\(9600\)[/tex]
3. Month 3: Profit = 7500
4. Month 4: Selling price = [tex]\(21000\)[/tex]

Given that:
- Month 1:
- Cost Price: [tex]\(200 \text{ (Cost of each item) } \times 5 \text{ (Number of items)} = 1000\)[/tex]
- Selling Price: [tex]\(24 \times 5 = 120\)[/tex]
- Profit = 22900
- Month 2:
- Cost: 11700
- Selling Price: 9600
- Month 3:
- Profit: 7500
- Month 4:
- Selling Price: 21000

### Step-by-Step Solution

1. Determine [tex]\(\text{A}\)[/tex]:
To find the selling price of the first month ([tex]\(A\)[/tex]):
[tex]\[ \text{Profit (Month 1)} = \text{Selling Price (Month 1)} - \text{Cost Price (Month 1)} \][/tex]
[tex]\[ 22900 = A - 1000 \][/tex]
[tex]\[ A = 22900 + 1000 = 23900 \][/tex]
Thus, [tex]\(A = 23900\)[/tex].

2. Determine the selling price for Month 3:
Since we know the cost in Month 2 and the profit in Month 3, we can find the selling price of Month 3. However, we must find the cost of Month 3 first. Let the cost be [tex]\( \text{Cost}_{\text{Month3}} \)[/tex].
[tex]\[ \text{Profit (Month 3)} = \text{Selling Price (Month 3)} - \text{Cost}_{\text{Month3}} \][/tex]
If we assume the cost structure for Month 3 follows a simple trend of arithmetic mean:
[tex]\[ \text{Cost}_{\text{Month3}} = \frac{\text{Cost (Month 2)} + \text{Cost (Month 4)}}{2} = \frac{11700 + 14200}{2} = 12950 \][/tex]
Selling Price in Month 3:
[tex]\[ B = \text{Profit (Month 3)} + \text{Cost}_{\text{Month3}} = 7500 + 12950 = 20450 \][/tex]
Thus, [tex]\(B = 20450\)[/tex].

3. Determine [tex]\(\text{Cost}_{\text{Month4}}\)[/tex] based on profit trend:
Since [tex]\(C\)[/tex] should reflect the profit from month 3, we'll use the trend to assume the cost.
[tex]\( \text{Cost}_{\text{Month4}} = \frac{23900 - 14400} = 9500 ) Thus, \(C = 13500\)[/tex].

Thus our values are:
- [tex]\(\text{A} = 23900\)[/tex]
- [tex]\(\text{B} = 20450\)[/tex]
- [tex]\(\text{C} = 13500\)[/tex]

### Step 4: Determine if Profit is Increasing, Decreasing, or Discrete
To determine the profit trend, consider the given profit values:

- Profit in Month 1: 22900
- Profit in Month 3: 7500

Comparing Month 1 and Month 3 shows a decrease.

Thus, the profit trend is decreasing.

### Step 5: Comment on Business Demand Fluctuation
Considering the seasonal impact on coats and jackets demand, it is safe to assume:
- Demand might peak during colder months (winter or rainy seasons).
- Demand might drop during warmer months.

Thus, it's unlikely that the business will have consistent demand throughout the year. Seasonal fluctuations are expected.

### Step 6: Draw a Line Graph
To draw a line graph of the given information:

- Plot the number of items over the months on the x-axis.
- Show cost and profits on the y-axis.

The graph will indicate the trend visually and must be clearly labeled with legends for 'Cost', 'Profit', and 'Number of Items'.

Ensure the graph is well-constructed with labeled axes, title, and a legend for clarity.

Here is an example pseudocode for drawing the graph in your head:
```
months = ["1st month", "2nd month", "3rd month", "4th month", "5th month"]
cost = [1000, 11700, 12950, 13500, None] # Estimated or given costs
profits = [22900, None, 7500, None, None] # Given profits
items = [5, 10, 15, 20, 25]

# Plotting logic will go here (use available graph plotting library to get the result you visualized)
# Ensure you have your months on the x-axis and costs, profits on the y-axis after converting them numerically.
```

In conclusion:
- [tex]\(\text{A} = 23900\)[/tex]
- [tex]\(\text{B} = 20450\)[/tex]
- [tex]\(\text{C} = 13500\)[/tex]
- Profit trend: Decreasing
- Business demand is likely seasonal and not consistent year-round.