Measuring in light-years also allows astronomers to determine how far back in time they are viewing , Because light takes time to travel to our eyes. Everything we view during the dark in night has already been happened.
Answer:
yes i think it would be part a or part b
Answer:
10
Explanation:
If you can't divide the number by 4, then it isn't divisible by 4. Try to divide 24, 8, 12, and 10 by 4. If your result isn't a whole number (like 2.4), then it isn't divisible by 4.