Answer:
A number is positive if it is greater than or equal to zero. A number is negative if it is less than or equal to zero.
2/3x +10.4 Is the answer to this question.
Try this option:
1 meter=1000 mm; 1 hour=60 min. From another side: 1 mm=0.001 m. and 1 min=1/60 h.
Using this rule:
620 mm/h=0.06*620 m/h=37.2 meters per hour.
answer: 0.06
