Answer:
Step-by-step explanation:
Distribute the ^3 on top
(27 
)
distribute the ^ -9 on bottom, only to what is in the parenthesis
(27 
)
the 27's cross out, the 's cross out
/ is left
move the to the top of fraction to change its sign
· 
=
The Associative property of addition is being shown, because it doesn't matter the order of the terms.
No as complementary angles add up to whisk 180 degrees, however supplementary angle would be true for this question
Answer:
279x
Step-by-step explanation:
By exterior angle of triangle:
17x+4+8x+1=80
x=3
