if the cross price elasticity between goods b and a is -2 and the price of good b increases by 5 percent the quantity demanded of good a will

lead to a fall in quantity demanded by 10%

Explanation:

The cross price elasticity of demand measures the effect of the percentage in price of one good on the quantity demanded of another good.

Cross price elasticity = percentage change in quantity demanded of good A / percentage change in price of good B

2 = percentage change in quantity demanded of good A / 5%

percentage change in quantity demanded of good A = 10%

Because demand is elastic, the quantity demanded would fall by 10%

Elastic demand means that quantity demanded is sensitive to price changes. A small change in price would lead to a greater change in quantity demanded

answer; specific performance;

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.