-162
Because 9 x 2 = 18
18 - 180 = -162
To solve this equation we must first plug in 5 for x.

<span> (5 - 4x)
</span>↓

(5 - 4 · 5)
The next step would be to multiply 4 by 5 to get rid of the parenthesis within our main parenthesis.

(5 - 4 · 5)

(5 - 20)
The next step would be to subtract both of the numbers within the parenthesis.

(-15)
Now we must multiply.
-

· 15 = -

-

Now we simplify our answer to get our final answer.
-5
8 is the greatest common factor
Less than 90° = acute
more than 90° = obtuse
equal to 180° = straight
more than 360° = reflex
Answer:help pls
Step-by-step explanation: