Quiz yourself

Question

How much money is this? <img src="https://images.houseofmath.com/eyJidWNrZXQiOiJob20tZnJvbnRlbmQtYXNzZXRzIiwia2V5IjoiTWF0aCBWYXVsdC9QaWN0dXJlcy9OdW1iZXJzIGFuZCBRdWFudGl0aWVzL01vbmV5L05ldyBiaWxscy9UYWxsb2dtw6VsaW5nUGVuZ2VyVGVsbGVwZW5nZXJmYW5lMW5yMDRFTlYxLnBuZyIsImVkaXRzIjp7InJlc2l6ZSI6eyJ3aWR0aCI6MTIwMCwiaGVpZ2h0Ijo2MzAsImZpdCI6ImNvdmVyIn0sInRvRm9ybWF0IjoicG5nIn19" alt="two $5 bills and one $10 bill" />

Accepted Answer

$20

Answer

$10

Answer

$11

Answer

$15