In 2009, Sal Khan walked away from a high-paying job to start a business that had no way of making money. His idea to launch a non-profit teaching platform was ignited five years earlier, when he was ...Show More
In 2009, Sal Khan walked away from a high-paying job to start a business that had no way of making money. His idea to launch a non-profit teaching platform was ignited five years earlier, when he was ...Show More
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