There are approximately 7.5×10 to the 18 power grains of sand on earth. there are approximately 7×10 to the 27 power atoms in an average human body. are there more grains of sand on earth atoms in the human body? how do you know ?

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Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.