Answer:
first one is 5.8
second on is 4.47 round
third one is 1.92
Step-by-step explanation:
Each side is equal its in the name. hope this help!!
Answer:

Step-by-step explanation:
Given

See attachment
Required
Determine the measure of 
and
are on a straight line.
So:
--- angle on a straight line
Substitute known values

Collect like terms


(15)(x+5) because product means multiply the two terms tigether