Question

Is the newer in this question is b, please help

Answer 1

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

Answer 2

Answer: A) 1.72 grams

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