I need help. Undrstand this exeecise ​

Using two or more complete sentences, describe how you can find a vector parallel to b=-2,3

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?

Landon wrote that 3−2.6=4. which statement about his answer is true?