Answer:
I don't get it?
like yhu want us to rate it or?
Explanation:
The mass would be 51 kg. So b is the right answer.
Dr. Inge discovered the make up of the earths inner core by studying how an earthquakes waves bounced off the core. And Inge Lehmann was studying the waves of a 1929 earthquake when she found them acting inconsistently with solid mantle crust
hope it helps you