Answer:

Step-by-step explanation:
Area of a square:
= 

Therefore, the answer of the scarf is 
Hope this helps!
Answer:
1,-2
Step-by-step explanation:
You can also say the answer is C.
Answer:
0.7
Step-by-step explanation:
67/10 is the same as 6.7 when you subtract the 0.7 you will remain with 6
6 to the power of 2 is 6 multiplied by six which is 36
then 13 + 39 is 52 - 2 = 50- 10 = 40 - 36= the answer 4