Question 224288
90<1x<140,,,,,that  is x greater  than  90  and  less  than  140.
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or,,,,, 140>1x>90,,,that  is  x  less  than  140  and  more  than  90
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I  worried  if  we  needed (<=)  signs  to  signify  less  than or  equal  to,  but  my  reference  said  no.  You  might  check  your  book.
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I  used  (1x) instead  of  (s),  as  my  computer  did  not  like  the  s  with  inequality  signs.