Respuesta :
You have to move the decimal symbol one place to right in the second distance, this is because you need to have both number with notation x10^7:
so, 1.5x10^8= 15x10^7
Now you can substract (15-5.8)x10^7 because they have the same notation:
(15-5.8)x10^7= 9.2x10^7 kilometers
So the answer is b
so, 1.5x10^8= 15x10^7
Now you can substract (15-5.8)x10^7 because they have the same notation:
(15-5.8)x10^7= 9.2x10^7 kilometers
So the answer is b