Answer:
0
Step-by-step explanation:
Thinking process:

=
by Stoke's Theorem
=
since z = 
Answer:
$9.36
Step-by-step explanation:
First 12.5 - 5.3 = 7.2
7.2 x 1.30 = 9.36
Since all triangles equal 180 degrees. You will subtract (128 + 23) from 180.
180 - 146 is 34 degrees.
x=34