The answer is: 20

Gen 37:28

Joseph's journey from being his father's favorite son to a slave sold for a mere 20 shekels of silver highlights the striking contrast of his life. The act of selling him reflects deep human jealousy and betrayal within a family context. Interestingly, the price of 20 shekels didn't carry the same weight back in Joseph’s time. In contemporary terms, it was roughly equivalent to 15 to 20 current dollars—a sobering reflection of his worth in the eyes of his brothers.

Joseph’s tale, like many stories in Genesis, showcases themes of resilience and redemption. Depicting the importance of narrative, Joseph would eventually rise from these dire circumstances to an influential position in Egypt, symbolizing the idea that one's beginnings do not dictate one's future. It’s also noteworthy that this kind of sale was not uncommon during ancient times, as certain debts would lead individuals to be sold into servitude.

Historical accounts reveal that Egypt served as a melting pot of cultures and commerce. This rich background confirming trade links between regions—Joseph’s sale underscores the ancient slave trade's harsh realities. Additionally, the dramatized culmination of Joseph’s story when he reveals himself to his brothers will resonate throughout Scriptures, presenting luminous insight into themes like forgiveness, transformation, and destiny.

Through Joseph’s life specifics, we may glean profound truths about moral lessons central to our human experience.