Respuesta :
No one is going to do your test or homework. I will only do one.
Neptune:
4, 495, 000,000 = 4.495 x 10^9
Answer:
Mercury is 5.7909 x 10^7
Venus is 1.082 x 10^8
Earth is 1.496 x 10^8
Mars is 2.2794 x 10^8
Jupiter is 7.784 x 10^8
Saturn is 1.4236 x 10^9
Neptune is 4.4884 x 10^9