Which common saying best captures the concept of incentives, which is one of the foundations of economics? \?

If the carrot doesn't work, try the stick

Explanation: It is a very common saying for the concept of incentives, where in it says that it is important to change the customers habits by providing them incentives on using the product as the customers' feel reluctant to change as they like at what they are. So the saying says that if the carrot doesn't work, like with  normal advertisement doesn't bring change in consumer habits then try the stick, which means provide them incentives for using the product.

if you use only 25 for your entertainment and only 200 for the groceries that you really need and take out the 50 per month for the computer then that should be enough

answer: a. the kind of population living in your neighbourhood.

the census explorer data tool by the us census bureau allows the user to zoom in on any neighbourhood within the united states and find the kind of people residing in that by race and age.  

the tool needs to needs to be used twice – once in order to find what type of people reside in a neighbourhood, and then to see the age groups of the people in the same neighbourhood.