Help me please help me help

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

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. how many hours after the truck's departure will the two meet?

How do i put 3(x+7) in distributive property