Answer:
b=36
Step-by-step explanation:
by triangle exterior theorem
b+81 = 117
b=36
Answer:
n=4
Step-by-step explanation:
=n
11.30 because 11/30 is 11.30
0.5s + 1 = 7 + 4.5s Subtract 4.5s from both sides
-4s + 1 = 7 Subtract 1 from both sides
-4s = 6 Divide both sides by -4
s = -

Simplify
s = -
Unbalanced is the answer
hope it helps