Answer :

scottmn

Answer:

I think the answer is only 2, hope this helps

Step-by-step explanation:

Answer:

52,000,000 km =  ✔ 2  significant figures

3,000. g =  ✔ 4  significant figures

0.0000750 m =  ✔ 3  significant figures

1.7 × 10-6 cm =  ✔ 2  significant figures

3 × 108 g =  ✔ 1  significant figures

Step-by-step explanation:

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