How to turn grams into kg

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

Identify the number as a rational or irrational. explain. 127

Select the two pairs of figures that are similar.