What is the surface area of a cube with a side of length 14 meters?

y₁=x₁+0.04x₂

y₂=x₂+0.06x₁

Step-by-step explanation:

In the first year, number of people who live:

In the city= x₁

In the suburb=x₂

New Population in the next year

In the city= y₁

In the suburb=y₂

If each year 6% of the city population moves to the suburb,

New Suburb Population=Previous Population+Immigrants

y₂=x₂+0.06x₁

If each year 4% of the suburb population moves to the city,

New City Population=Previous Population+Immigrants

y₁=x₁+0.04x₂

y₁=x₁+0.04x₂

y₂=x₂+0.06x₁