Respuesta :

They all have been taken:

JANE MCDONALD-CRONE · JALIEK L. RAINWALKER · ARANZA MARIA OCHOA LOPEZ · KARLA RODRIGUEZ · WANDA FAYE WALKER · ROBERT GARRETT

shmush
You can set up the equation like this:

54.28 = 29.928 + x

X is the second rock.
The next step is to subtract 54.28 and 29.928.

54.28 - 29.928 = 24.352


The second rock weighs 24.352 kilograms.

Hope this helped!