Tasks are small chores that the CEO has given to you to improve the businesses. Tapping the button with CEO (monkey) image on top left part of the screen will show you a list of available tasks and their current progress. Red badge on top of the button shows the number of available tasks.
There are two types of tasks – small and big – and the size of the task completion reward depends on the type. When you complete a task, you will be automatically rewarded with spins and cash. Completed tasks will be replaced with new ones, but it will take some time for a next task to appear in the list.