The mass of a box measured by a grocer's...

The mass of a box measured by a grocer's balance is `2.300`kg. Two gold pieces of masses 20.15g and 20.17g are added to the box. What is the total mass of the box and the difference in the masses of the pieces to correct significant figures

2.34 kg, 0 g

2.3 kg, 0. 02 g

2.34 kg, 0. 02 g

2.3 kg, 0 g

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The mass of a box measured by a grocer's balance is 2.300kg. Two gold pieces of masses 20.15 g and 20.17 g are added to the box. What is (a) the total mass of the box, (b) the difference in the masses of the pieces to correct significant figures?

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