There are five trees per square mile. Linda cuts down every tree in a 6 mile by 4 mile area.
How many trees did Linda cut down?

3 trees and a square mile takes 1 tree

Step-by-step explanation:

a square mile means 2 miles each

2000000 bricks

Step-by-step explanation:

The computation of the number of bricks to be used is shown below:

The Volume of brick is

= (15 × 8 × 5)cm^3

= 600 cm^3

And, the Volume of wall is

= (1500 × 1000 × 800)cm^3

= 1200000000 cm^3

Now Bricks needed is

= 1200000000 cm^3 ÷ 600cm^3

= 2000000 bricks