The world bank divides middle-income economies into lower-middle and upper-middle. argentina, brazil, mexico, and turkey are considered nations with economies.

Argentina, Brazil. Mexico and Turkey are nations considered with upper-middle income nations.  This grouping is classified using the Gross National Income per capita, or also called as GNI per capita.  This is the value of dollar in every country’s final income in a year.

formulating the initial idea for the policy

answer is c.

3 notebooks and 3 pencils packages

step-by-step explanation:

((3×1.25)+(3×2.75))=12

3×1.25=3.75

3×2.75=8.25

3.75+8.25=$12