what is m <abc a=130 c=20 b=?

Mathematics
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Oct 9th, 2015

Thank you for the opportunity to help you with your question!

m<B +m< C = <DAB

m<B= <DAB- m<C

= 130- 20

= 110 

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Oct 9th, 2015

when when posting the images from computer, use the icon i have show in this image to insert an image. that way, they will reach me. you can do more than one image by this process 

Oct 9th, 2015
imag0832.jpg

I tried that earlier and nothing showed up when I uploaded. Can you try and maybe tell me I must be doing something wrongundefined   when I do it it it says no file has been chosen then when I get the file there what do I do

Oct 9th, 2015

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