Answer:
b=85º
a=20º
Step-by-step explanation:
Angle B is supplementary with the 45º and the 50º angle, therefore the sum of the three angles must be 180
45+b+50=180
95+b=180
Angle A, Angle B, and the 75º angle must also add up to 180
85+75+a=180
160+a=180
Answer:2460
The answer to your question is,
$3.84, you take $69.20 and divide it by 18 and there is your answer!
-Mabel <3
^^
I just pressed 27/90 on the calculator hahahha
