20 1 year younger than spongebob
Sam's age = 32 Sandy's age = 32 -x 32 = 2 (32 -2x) 16 = 32 -2x 2x = 16 => x = 8 Sandy's age = 32 - 8 => 24 years
I believe that Sandy is 16. That makes the most sense since no one graduated at the end of the movie and they were all making plans for the next year at school.
Sandy Duncan is 65 years old (birthdate: February 20, 1946).
Sandy Kenyon, the voice actor, was 87 years old when he died on February 20, 2010.