Answer:
D
Step-by-step explanation:
In order to get from meters to centimeters, you multiply by 100. Therefore, you do 12 x 100 which equals 1200. From there you multiply 1200 x 2 and add that onto 400 x 2. (or 1200+1200+400+400)
the answer is b
y=1
x=7/4
4x + 5y = 12
3x + 4y = 9.25
12x + 16y =37
-12x -15 y =-36
SI
I think it is "B"