Answer:
D. 35 + 145 = x
The sum of the angles = 180 degree
Step-by-step explanation:

You would do 120/300 = p/100 and you would get 40%
Answer:
not 35
Step-by-step explanation:
it 18
LW = 45
L + 2W = 19
L = 19-2W
substituting for L :-
W(19-2W) = 45
-2W^2 + 19W = 45
2W^2 - 19W + 45 = 0
W = 5 or 4.5
If W = 5, L = 9
If W = 4.5, L = 10
So there are 2 possible answers.