2. Carlos was in charge of purchasing baseball hats for the team.
- He can get them in three colours: blue, green, and black.
- The green and blue hats come in fitted and one-size-fits-all, and in both washable and non-washable versions.
- Black hats come in only fitted and non-washable styles. How many hat choices does Carlos have? Show your thinking.

Answer

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Answer

Add the choices for each color: \(4 \text{ blue/green choices} + 1 \text{ black choice} = \boxed{9} \text{ total choices}\)

Steps

Step 1 ：Calculate the number of choices for blue and green hats: \(2 \text{ sizes} \times 2 \text{ types} = 4 \text{ choices}\)

Step 2 ：Calculate the number of choices for black hats: \(1 \text{ size} \times 1 \text{ type} = 1 \text{ choice}\)

Step 3 ：Add the choices for each color: \(4 \text{ blue/green choices} + 1 \text{ black choice} = \boxed{9} \text{ total choices}\)