Answer:
The value of the exterior angle is 
Step-by-step explanation:
we know that
The sum of the interior angle plus the exterior angle is equal to
, because are supplementary angles.
Let
x-----> the measure of the exterior angle
so

solve for x

1/3n - 8 = -13 <== ur equation
1/3n = -13 + 8
1/3n = - 5
n = -5 * 3
n = -15
check..
1/3(-15) - 8 = -13
-5 - 8 = -13
-13 = -13 (correct)
so the number (n) = -15
Answer:
this is my old account and these still dont have answers
Step-by-step explanation:
Answer: 12 girls to 27 students
5 boys to 9 students
15 boys to 12 girls
HOPE THIS HELPS
CAN U PLEASE GIVE ME BRAINLIEST