we know that
The sum of the internal angles of a triangle must be equal to
degrees
see the attached figure with letters to better understand the problem
m∠B+
°-----> by supplementary angles
m∠B=
m∠A=
m∠C=
m∠A+m∠B+m∠C=
Substitute

therefore
the answer is
the value of x is equal to 
I can answer the first four
1 is 40%
2 is 60
3 is $1.35
4 is 6%
Answer:
Look
Step-by-step explanation:
best solution is ask ur mom