Answer:
x≥2
Step-by-step explanation:
12x+6\ge \:9x+12
12x+6-6\ge \:9x+12-6
12x\ge \:9x+6
12x-9x\ge \:9x+6-9x
3x\ge \:6
Answer:
Step-by-step explanation:
3
Answer:
9.31st 91 35 5789 400th
Step-by-step explanation:
43.45+567=
9.3
Answer:
The expression for the perimeter of the rectangle is: 
Step-by-step explanation:
Perimeter of a rectangle:
A rectangle has length l and width w. It's perimeter is given by:

In this question:

So

The expression for the perimeter of the rectangle is: 
Answer:
a = (-7)
Step-by-step explanation:
Firstly clear the bracket...,
-6(-2 + a) = 12 - 6a
Then substitute the simplified version in place of bracket...,
; 12 - 6a = 54
; -6a = 54 - 12
; -6a = 42...then divide both sides by (-6)
Therefore...., a = (-7)