Answer:
angle C and angle D
Step-by-step explanation:
when those two angles are added together, they are to give a total angle of 180°
Associative Property
The parentheses are grouping operators.
Think about the word associate to make it easier
The next score is 90 because 85+91+92+92=360/4= 90 average.
N2+40-28=
Combine like terms
n2+40-28=n2+12
Factor out 2
n•2+12=2(n+6)
Therefore the answer is 2(n+6)