Answer:
x=158
Step-by-step explanation:
109=-x+267
-267 -267
-158=-x
x=158
(also i noticed part of your question says x=(?)*5 and 31.6*5 is 158 so that would be 31.6)
Area is defined as a product of sides when we talk about squares.

The area of the front cover of notebook is 400 centimetres squared.
Hope this helps.
r3t40
Answer: b
Step-by-step explanation:
because it's all on the line.
Answer:
1,296
Step-by-step explanation:
36 pages x 6 cards a page = 216 cards per binder
216 cards x 6 binders = 1296