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```latex
\begin{tabular}{|l|l|l|l|l|}
\hline
& \multicolumn{1}{|c|}{\begin{tabular}{l}
Week 1 \\
Location 1
\end{tabular}} & \begin{tabular}{l}
Week 2 \\
Location 2
\end{tabular} & \begin{tabular}{c}
Week 3 \\
Location 3
\end{tabular} & \begin{tabular}{c}
Week 4 \\
Location 4
\end{tabular} \\
\hline
Insects & 13 & 20 & 18 & 15 \\
\hline
Crustaceans & 8 & 16 & 20 & 22 \\
\hline
Fish & 3 & 11 & 13 & 12 \\
\hline
Other & 5 & 2 & 0 & 4 \\
\hline
\end{tabular}
```

Ensure the samples have the same collection method each time.

Collect samples from a different habitat.

Use a more sophisticated method to collect smaller creatures.


Sagot :

To determine how much money was spent on bagels and how much money remains, we can follow the steps below:

1. Starting Amount of Money:
- Initially, the person has $23.

2. Cost and Quantity of Bagels:
- Each bagel costs $3.
- The person buys 5 bagels.

3. Calculate Money Spent on Bagels:
- The total cost for the bagels can be calculated by multiplying the price per bagel by the number of bagels.
- Therefore, the total cost is \(5 \text{ bagels} \times 3 \text{ dollars/bagel} = 15 \text{ dollars}\).

4. Calculate Remaining Money:
- To find out how much money is left, subtract the total cost of the bagels from the initial amount of money.
- Thus, the remaining money is \(23 \text{ dollars} - 15 \text{ dollars} = 8 \text{ dollars}\).

So, the person spent 15 dollars on bagels and has 8 dollars left.