Question

Light travels at a rate of about 9,460,528,400,000,000 m per year.

Choose the best approximation of how many meters light travels per year.
Choose 1 answer:
(A) 9x10^15
(B) 9x10^16

Answer 1

9x10^15

Explanation:

9,460,528,400,000,000

If you count the numbers up until 9 you get 15. So the easy hack is to just count the numbers up until the VERY first then whichever answer had that number is the right one.

Answer 2

A

Explanation:

You just find out which number is closer to the speed of light