Celebrate a 17th birthday in style with this unique black t-shirt! The tee features a playful math equation design, with the square root of 289 prominently displayed, followed by "Years Old." The design is surrounded by various colorful mathematical formulas and symbols, making it perfect for math enthusiasts or anyone with a sense of humor. This eye-catching shirt is sure to be a conversation starter at birthday parties or casual outings. Made from a comfortable fabric, this shirt is ideal for everyday wear. Grab this fun and memorable tee to mark this special occasion!