The problem asks how much Daniela will spend if she buys 4 records, given that each record costs $9.

Solution:

To calculate the total cost: $\text{Total cost} = \text{Number of records} \times \text{Cost per record}$ $\text{Total cost} = 4 \times 9 = 36$

Answer:

Daniela will spend $36 if she buys 4 records.

Would you like further details or clarification? Here are some related questions to expand understanding:

1. What if Daniela wanted to buy 10 records? How much would she spend?
2. How could we create a formula to calculate the cost for any number of records?
3. What is the relationship between the number of records and the total cost in terms of graphing?
4. If Daniela has a $50 budget, how many records can she buy?
5. What happens if the price per record increases to $12?

Tip:

When solving word problems, identify the key data (e.g., cost per item) and use simple formulas to calculate the answer.