-x + y = -13 → -3x + 3y = -39
-4x + 3y = -51 → -4x + 3y = -51
x = 12
-x + y = -13
-(12) + y = -13
-12 + y = -13
+ 12 + 12
y = -1
(x, y) = (12, -1)
I divided 6 by 156 and I got 0.0384615385 that's what I got
Answer
all 3 of those are not true
Step-by-step explanation:
if its diameter is 8 cm, then its radius is half that, or 4 cm.

3.4 is the answer (rounded up of course)