For how many shekels of silver did Hosea buy back his wife?

Answer: 15

Told to love his adulterous wife again, Hosea bought her for fifteen shekels of silver plus a measure of barley.

“Then the LORD said to me, “Go show love to your wife again, though she is loved by another and is an adulteress. Love her as the LORD loves the Israelites, though they turn to other gods and love to offer raisin cakes to idols.” So I bought her for fifteen shekels of silver and a homer and a lethech of barley.”— Hosea 3:1-2 (BSB)