-6.2 plus -4.8 is -11. add the 3.8 to get -7.2
-4.8 plus 3.8 is -1
-1 plus -6.2 is -7.2
-7.2=-7.2

<u>Step-by-step explanation:</u>
Here we have , sin x=7/25( given sin x = 725 which is not possible ) ,
. Let's find tan (x - pi/4):
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Now , 
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Y=58
Y+14/6=12
Cross multiply to solve
So y+14=72 then subtract 14 so
Y=58
Aida did not use 0.18 for 18%.
When you are finding the percent of something, you can also do this in the attachment below. Yes it is written on a napkin. Hope I helped.