The total dollar amount of all final goods and services purchased within the nations borders in each year is known as the
a. economic indicator
b. gross domestic product
c. consumer price index
d. business cycle

b. Gross domestic product.

Step-by-step explanation:

Gross domestic product is the monetary value of all final goods and services produced within the country in a specific period of time. It is a indicator of country´s economic health and growth rate.

It is calculated using three method:

a) Income.

b) Production.

c) Expenditure.

GDP help the investor to make important financial decisions. Growth in GDP is a sign of higher earning and higher stock prices. GDP is generally compared to previous quarter or financial year. There are two ways of calculating GDP:

a) Nominal GDP b) Real GDP.

a) Nominal GDP- It consider only current market prices without considering inflation or deflation.

b) Real GDP- It consider inflation rate or time value of money.

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.

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step-by-step explanation: