Information can spread exponentially/geometrically. This is great for true information but bad for rumors, misunderstandings, or disinformation.
(CALCULATOR) A piece of fake news is posted to Instagram. After 3 hours, 40 people believe the fake news. After 6 hours, 100 people believe the fake news. If the information is spreading exponentially, predict how many people will believe the fake news after 10 hours. Round to the nearest whole number.