In the following diagram, BC is parrel to DE.
What is the measure of

x°=21°

Step-by-step explanation:

the angle where b is, is 54°, and this angle is equal to the angle that's left of 105°. The degree of line DE is 180°. Subtract 105° and 54° from 180° to get the missing angle that's on the right side of 105°. That angle would be 21°, and this angle is directly across the missing x°. So, x°=21°.

180-105-54=21 > this angle is directly across from the missing x°.

is should be y = 5x

step-by-step explanation:

correct me if im wrong

the answer is 40.

proof: