2(3x +x)=30
8x = 30
x =3.75 = width
3x = 11.25 = length
No the figures aren’t similar. According to the Angle Angle Similarity Theorem- they should have the same angle degree.
.05 is equal to 5%
So for every dollar the mark up is .05cents
So if you times $81 by .05 this will give you the mark up because each of the 81$ needs .05 added to it.
So $4.05 Is the mark up
And
The cost would be markup and original added together
