As Uber goes public, profitability will be the next challenge

Uber is hitting the public markets on Friday and its valuation could top $90 billion. The world's biggest ride-hailing business is debuting six weeks after smaller rival Lyft.

But Uber is far from making money. It reported an operating loss of $3 billion in 2018 after losing more than $4 billion the previous year. Still, not all investors are scared away from Uber's red ink. Some analysts predict it will eventually turn a profit.

Watch the video to learn how Uber spends money and what it will take for the business to become profitable.