Darrell is customizing a new sailboat There are 2 sizes of boats and 2 exterior colors to choose from. For the interior color, there are 5 options Finally, there are 2 options for the upholstery. How many different sailboats can Darrell buy? square sailboats

## Step 1: Calculate the number of choices for the boat size and exterior color.<br />### There are 2 sizes and 2 exterior colors. Multiply these together: $2 \times 2 = 4$.<br /><br />## Step 2: Calculate the number of choices including interior color.<br />### There are 4 choices from step 1 and 5 interior color options. Multiply these together: $4 \times 5 = 20$.<br /><br />## Step 3: Calculate the total number of choices including upholstery.<br />### There are 20 choices from step 2 and 2 upholstery options. Multiply these together: $20 \times 2 = 40$.