Step 1: Identify the values of each character in 'BAA'. 'B' represents 11, 'A' represents 10.
Step 2: Write down the place values for each character in 'BAA'. The first 'B' is in the hundreds place, the first 'A' is in the tens place, and the second 'A' is in the ones place.
Step 3: Convert 'BAA' to decimal using the values and their place values: 'B' (11) is in the hundreds place, so it is 11 * 100 = 1100.
Step 4: The first 'A' (10) is in the tens place, so it is 10 * 10 = 100.
Step 5: The second 'A' (10) is in the ones place, so it is 10 * 1 = 10.
Step 6: Add all the values together: 1100 + 100 + 10 = 1210.
