Final answer:
Act utilitarianism, associated with Jeremy Bentham, is concerned with calculating amounts of happiness.
Step-by-step explanation:
The form of utilitarianism associated with Jeremy Bentham that is concerned with calculating amounts of happiness is called act utilitarianism. Act utilitarianism focuses on the consequences of individual actions and seeks to maximize overall happiness by calculating the expected utility or happiness produced by each action. Bentham believed that pleasure and pain are the fundamental indicators of happiness and suffering, and that the morality of an action is determined by its ability to maximize pleasure and minimize pain.