Respuesta :

1st - 7x10^-9
2nd - 3x10^-9
3rd - 5x10^-8
4th - 8x10^-4
Answer:  "  { 7 * 10⁻⁹ }  < { 3 * 10⁻⁹ } <  { 5 * 10⁻⁸ } <  { 8 * 10⁴ }  " . 
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