Answer:

Step-by-step explanation:
Let the unknown angle be x
As the interior angles in a triangle are added up to 180°

Hope this helps you.
Let me know if you have any other questions:-)
The answer is 17/5. First you multiply 5*3=15 then you add 2 which your answer is 17/5.
Answer:
Nolan takes 100s
Step-by-step explanation:
x = x - 15x/100
x = 0.85x
x = 85/0.85
x = 100s
Answer:
Step-by-step explanation: