Answer:
a part of the question is missing
Answer:
Part 1) 
Part 2) 
Part 3) 
Step-by-step explanation:
step 1
Find the value of x
we know that
The sum of the interior angles in any triangle must be equal to 180 degrees
so
In the triangle ABC

substitute the given values

Solve for x


step 2
Find the measure of angle B
we know that

substitute the value of x

step 3
Find the measure of angle C
we know that

substitute the value of x
Maybe it’s 2? Let me know if I’m wrong
Answer:
73
Step-by-step explanation:
x/5+7=16
times 5 both sides
x + 7 = 80
-7 -7
x=73