Cube Root of 729:9 Years Old Birthday T-Shirt Square Tee Tee

Funny t-shirt for girls, boys, juniors, youth, kids, and children. Cube root 9-year-old t-shirt, funny math 9-year-old t-shirt, math 2009 birthday t-shirt, fun geek algebra 9-year-old t-shirt, humorous geek b-day 9-year-old t-shirt for women and men. Perfect birthday gift for her. Cube root of 729: 9th birthday. Explanation: (9 x 9) = 81, then 81 x 9 = 729. Square root apparel, outfit, undershirt, underwear, clothing, tracksuit, dress.