Mr. Dean often told funny stories about his pet cat, Snowball, to his class at school. After showing the class a picture of Snowball one day, he asked the students to guess the cat's age. Then, he told them Snowball was 16 years old! Reggie had guessed an age 37.5% less than that. What age did Reggie guess for Snowball?

To find the age Reggie guessed for Snowball, we first need to calculate 37.5% of Snowball's actual age, which is 16 years.

1. Calculate 37.5% of 16: \[ 37.5% = \frac{37.5}{100} = 0.375 \] \[ 0.375 \times 16 = 6 \]

2. Now, we subtract this amount from Snowball's actual age: \[ 16 - 6 = 10 \]

Therefore, Reggie guessed that Snowball was 10 years old.