Answer:
11.718
Step-by-step explanation:
I don't know, figure it out yourself.
Answer given above. Pls check
Rectangle B has greater perimeter.
Area is Length X width.
Length = 4+7 = 11 m
Width = 8 m
Area = 11 x 8 = 88 m^2
x = 2
expand the brackets firstly,
so 12x-4 = 20
then add the -4 onto the other side
so 12x = 24
then divide 24 by 12 to get x
so x = 2
