Use the information given to write an equation in standard form.(If possible please show work)

According to the number line, what is the distance between points a and b? v ++ + + + + -16 -14 -12 -10 -8 + 6 + 4 + -2 + 0 + 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 o6 units o 7 units 12 units o 14 units

How do i do this activity, is appreciated

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4