How do you calculate the area underneath the demand curve when it asks what the total value is

Total utility

Explanation:

The demand curve gives the amount acceptable to the consumers as price for a given quantity of a product. That is to say, given the available quantity of a product, the height of the demand curve gives the amount the consumers estimate the worth of the product

The area under the demand curve, therefore, represents the amount of utility or satisfaction that can be derived from a good or service, given that the demand curve is the representation of the estimation of the worth of a good by a consumer and price that the consumers pay is the utility cost

the answer is "b.the increased supply will create a surplus. "

the essential thought behind price controls is straightforward - utilize the power of law to modify the equilibrium of a market. for instance, the legislature may choose that the steel business needs to survive, and in this way pass a law to set a value floor on steel. this implies all steel sold must offer at or over the floor value, which must be set over the equilibrium cost for it to have any impact. the switch could likewise happen - the administration can choose that steel is excessively costly and set a value roof underneath its equilibrium value, with the goal that all steel must be sold at or beneath that ceiling.