6 I think but don't take my word for it.
I believe it is C, as the graphs do look the same.
The equation of line a is obtained by multiplying the equation of line b by 4. i.e. there are linearly dependent and hence there are infinitely many solutions to the set of equations.
Step-by-step explanation:
-3x - 4 < 2
-3x < 2 + 4
-3x < 6
x < 6/ - 3
x < - 2
The answer is 3500 meters.
1 km = 1000 meters. This means that 3.5 x 1000 = 3500