Rakesh has a rectangular plot whose length is two times it’s breadth. The perimeter of the plot is 6480m.He plans to make a vegetable garden in the form of a square whose perimeter is 1440m

If x is the breadth of the rectangular plot, then what would be its length
Find the plot’s dimensions
If y is the side of the vegetable garden write an equation to calculate its side.
Find the length of the vegetable garden.