Answer:

Step-by-step explanation:
Take a look at the attachment...
Hope this helps! :)
All interior angles equal to 180 just add the two angles you have and subtract it from 180 to get the final angle
Answer:
The quiz grades for class 1 have more variability than the quiz grades for class 2.
Step-by-step explanation:
0.144 because the number after 3 is 5 and that rounds the 3 to a 4.