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Help 19,20

 May 15, 2018
 #1
avatar+3994 
+2

19. Since the pattern is times 3 from the previous number, and we want to find the tenth number, here's the list:

1+3+9+27+81+243+729+2187+6561+19683

Adding gives us:

29524

smileysmiley

 May 15, 2018
 #2
avatar+824 
+2

20).

June =                                $22

July =              22*1.1 =       $24.2

August =        24.2*1.1=        $26.62

September = 26.62*1.1 =       $29.282

October = 29.282*1.1 =           $32.2102

November = 32.2102*1.1 =       $35.43122

December = 35.43122*1.1 =       $38.974342

__________________________________________

Total:                                            $208.717542 ≈ $208.72

 May 15, 2018

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