Answer:
55/9
Step-by-step explanation:
Nobody's going to write an essay for you dude
A=4 4 times 12 is 48 minus 24 is 24

You get this by switching the f(x) and the x and then solving for the new f(x)
The diagram provided is an isosceles triangle. An isosceles triangle has two sides having equal measure and two base angles also having equal measure.
From the marks on the triangle given, line ZX and line ZY are equal in length. This also means angle X and angle Y are equal in measure.
Therefore, we would have;

This means angle X and angle Y both equal 27 degrees each.
Note that the sum of angles in a triangle is 180. Therefore, in triangle ZXY,