Share £ 120
in the ratio 5:6:4

ANDDD There are green, red and purple counters in a bag in the ratio
8
:
2
:
11

There are
120
more green counters than red counters.

How many red counters are there?

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm