How many grains of sand are there in the world
2 answers:
There are seven quintillion five quadrillion grains of sand on all the beaches of the world. The exact number is not known.
Uncountable!? because there are more than a billion grains and it is clearly impossible to count them
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Answer:
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Answer:X=-1
Explanation:
15x +30+9x=6
-30 -30
24x =-24
24 24
x = -1