Quiz yourself

Question

Regn ut <img src="https://images.houseofmath.com/eyJidWNrZXQiOiJob20tZnJvbnRlbmQtYXNzZXRzIiwia2V5IjoiTWF0aCBWYXVsdC9QaWN0dXJlcy9OdW1iZXJzIGFuZCBRdWFudGl0aWVzL051bWJlcnMvVGFsbG9nbcOlbGluZ1RpZXJ2ZW5uZXJUaWVyc3Rhdjkuc3ZnIiwiZWRpdHMiOnsicmVzaXplIjp7IndpZHRoIjoxMjAwLCJoZWlnaHQiOjYzMCwiZml0IjoiY292ZXIifSwidG9Gb3JtYXQiOiJwbmcifX0=" alt="tierstav minus null" />

Accepted Answer

10

Answer

0

Answer

11

Answer

12