TanY=y/x
cotY=1/tanY
cotY=x/y
Subtract 3/4x from both sides
1/3x-4-3/4x= 3/4x+1-3/4x
-5/12x-4=1
Add 4 to both sides
-5/12x-4+4=1+4
-5/12x=5
Multiply both sides by 12/(-5)
(12/-5)*(-5/12x)= (12/-5)*(5)
x= 12
I hope that's help.
It’s Has to be B because if you had the negative numbers you get -12
Answer: We need more information. How much money is she going to save every week?
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