C.144
Step-by-step explanation:
Angle 1 and 9 are supplementary angles so angle 1+9=180 degrees.
Substitute it, 36+angle 9=180
Use the subtraction property of equality to get angle 9 = 144
Hope this helps and is the answer you were looking for
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m∠9 = 144
measure of straight angle FCE=180
angle FCE=measure of angle 9 + measure of angle 1
180=m∠9+36
180-36=m∠9
m∠9=144