The distance from Betelgeuse to Earth is known to be between 400 and 700 light years.

The distance from Betelgeuse to Earth is known to be between 400 and 700 light years. How many meters is 400 light years?
What is 400 x 19 x 1025)? Drag and drop each of my steps in order to help
us write an estimate in scientific notation, then click DONE.
3.6 x 1018
STEP 1
STEP 2
(3.6 x 103) x 1015
STEP 3
Remember that light
travels at a speed of
9.460730473 x 1015
3.6 x (103 x 1015)
STEP 4
meters per year
(400 x 9) x 1015
ESTIMATE
3600 x 1015
DONE