To solve the problem:

The question asks for the total weight of Swiss cheese and turkey Tyrone bought:

• Weight of Swiss cheese: 2.25 pounds
• Weight of turkey: 4.2 pounds

Step 1: Add the weights

$2.25 + 4.2 = 6.45 \, \text{pounds}$

Step 2: Round to the nearest whole number

• 6.45 rounds to 6 pounds.

Thus, the closest answer is A: 6 pounds.

Would you like me to explain any step in more detail?

Related Questions:

1. How do you round numbers to the nearest whole number?
2. What other methods can you use to approximate a sum quickly?
3. Can you explain why the answer is rounded rather than exact?
4. What is the importance of precision in real-life situations like this?
5. What are some strategies for quickly solving addition problems mentally?

Tip:

When solving word problems, underline key numbers and words to focus on important details.