I can h lo just do the message thing and I can probably 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


B) Commutative property of Multiplication
Hope this helps!
Answer:
Step-by-step explanation:
Ea sports be like more money