Respuesta :

rrj5184198

No it's A and it sure of it because 19.28 + 25.3 = 44.58 and 46.30 - 44.58 = 1.72

tramserran

Answer:  A) 1.72 grams

Step-by-step explanation:

The mass of the third rock (46.3) minus the combined mass of the first and second rock (19.28 + 25.3 = 44.58):

 46.30

- 44.58

    1.72

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