katyyyyyyyy
katyyyyyyyy katyyyyyyyy
  • 25-04-2017
  • Mathematics
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Help me 14 & 15 I NEED WITH WORK PLZ!!!!

Help me 14 amp 15 I NEED WITH WORK PLZ class=

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Hoa2003
Hoa2003 Hoa2003
  • 25-04-2017
15) the surface is 
   ( 9 + 5 ) * 2 * 10 + 9 * 5 * 2
         14    *     20   +      90
                   280       + 90
                               370 
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