Well I know 40+30+20= 90. If that is not what you are looking for then you need to clarify what you are asking.
Answer:
2(3x+4) + 2(2x-3)
Step-by-step explanation:
this is because to be able to find the perimeter you use the formula 2(l) + 2(w)
Answer:
-5
Step-by-step explanation:
The coefficient is the number attached to the variable.
Answer:
(5/2, 6)
Step-by-step explanation:
(x, y)=[(5+0)/2, (9+3)/2]
(x, y)=[5/2, 12/2]
(x, y)=(5/2, 6)