i am doing a school project and i have to find an expensive car. i don't know to start kind of. if you could buy any expensive car in the world which car would you choose and why?
ok so i got this packet in math class about speed of light/sound and there is level 1 and 2 and Einstein level. i got to the 2nd Einstein level question and got stuck and i was wondering if anyone could help. here it is:
You see lightning flash in the north and 7.5 seconds later you hear...