Answer: C. 4/10
I used calculator
Answer:
hi .......
Step-by-step explanation:
A = 3244
B = 864
C = 3080
700 + a = 3944
-700 -700
a = 3244
3944 - b = c - 80 = 3000
c - 80 = 3000
+80 +80
c = 3080
3944 - b = c ---> 3944 - b = 3080
-3944 -3944
-b = -864 --->