Respuesta :

Answer:

i dont know if im right but here 60 grams divided by 7,200 and you will get your answer

Step-by-step explanation:

6 times 10 is 60 and there 7,200 kg so if u divide u will get it.

Step-by-step explanation:

First you should find the wheight of one grain of sand, after that divide 7200 by that wheight and you should come up with how many grains it will take.