You forgot the picture of the square, please repost the question with the picture next time.
Answer:
The answer is 1 
The work is shown on the picture.
Step-by-step explanation: Hope this helps and mark brainliest if ya want :)!
Answer:
The scale factor is -1/4.
Step-by-step explanation:
Octagon has 8 sides so the sum of the angles of the octagon is 180(8-2)=180 (6)=1080 degrees
A title could be the effect of the amount/number of days on the amount/number of bacteria. For the 2nd The IV is temperature, the DV is Enzyme Activity and a title could be The effect of Temperature on Enzyme activity.