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390
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avatar+225 

15 X (7.5 + 6.21) = 

 Sep 6, 2017
 #1
avatar+459 
+1

Here's how you do it:

 

7.5 + 6.21 = 13.71

13.71 * 15 = 137.1 + 68.6 = 212.7

 

212.7 is the answer. 

 

(I did the math in my head, so just in case put it in the calculator)

 

smiley

 Sep 6, 2017
 #3
avatar+225 
0

Thanks but I use the calculator and it gave me 2034

cassie19  Sep 6, 2017

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