Question

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Answer 1

\[x=180-36-63\] since interior angles add to 180

Answer 2

180 degrees in a triangle, so
180 - (36+63) = X
180 - 99 = X
81 = X

X and Z are supplementary, since a line = 180 degrees, so
180 - X = Z
180 - 81 = Z
99 = Z

And then Z + Y +13 = 18=, since all the angles in a triangle add up to 180, so
99 + Y +13= 180
112 + Y = 180
Y = 68

Hope this helps :]

Answer 3

this makes
\[x=99\] and therefore
\[z=180-99=81\]