Answer:
IM TERRIBLE IN GEOMETRY
Step-by-step explanation:
First you had to remove parenthesis first.
Multiply by the numbers.
Final answer 
Hope this helps!
And thank you for posting your question at here on brainly, and have a great day.
-Charlie
Answer:
7.1
Step-by-step explanation:
um i think yolo
One of the unknown angles (let's called it n) has a complement (meaning their sum adds up to 90 degrees) and the other angle is 8 times the unknown angle (8n)
With all this information, you should have the equation:
n + 8n = 90
To solve, combine like terms to get:
9n = 90
Divide by 9 on both sides to isolate the variable n.
n = 10
Now we plug back in to find our angle measurements. The first angle, n, is 10 degrees. The second angle, 8n, is 8 * 10 which is 80; the second angle is 80 degrees.
The answer is root. Hope this helps!
