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The question asks to determine the cost of 42 rackets from two different stores and to calculate the savings if they are bought at the cheaper store. Let's break down the information:

1. The price of one racket at store 1 is $14,500.
2. The price of one racket at store 2 is $15,800.
3. We are asked to calculate the total cost for 42 rackets in both stores and the savings if purchased from the cheaper store.

### Step-by-step solution:

1. **Total cost at store 1 (cheaper store):**
   \[
   \text{Total cost at store 1} = 42 \times 14,500 = 609,000
   \]

2. **Total cost at store 2:**
   \[
   \text{Total cost at store 2} = 42 \times 15,800 = 663,600
   \]

3. **Savings if bought at store 1:**
   \[
   \text{Savings} = 663,600 - 609,000 = 54,600
   \]

### Final answer:
- The total cost for 42 rackets at store 1 is **$609,000**.
- The total cost for 42 rackets at store 2 is **$663,600**.
- The savings by buying at the cheaper store is **$54,600**.

Would you like further details or have any questions?

### Relative questions:
1. What would the savings be if the store with the cheaper price increased its price by 10%?
2. How would the total cost change if you bought 50 rackets instead of 42?
3. What would be the savings if only 21 rackets were purchased at the cheaper store?
4. How much more expensive is one racket at the more expensive store compared to the cheaper one?
5. If the price difference between the two stores increases by $500, how would that affect the savings?

### Tip:
When comparing costs between two options, multiplying the unit price difference by the total quantity is an efficient way to calculate savings.

El costo de una raqueta para zancudos es de $14,500, pero en otro local las venden a $15,800. ¿Cuánto costarán 42 raquetas en ambos locales? Determine cuánto se ahorra una miscelánea que desea comprar 42 raquetas si las compra en el local más barato.

Determine the cost of 42 rackets at two different prices, $14,500 and $15,800, and calculate how much a store would save by buying at the cheaper price. A step-by-step guide for students in Grades 7-9.

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