Answer: i think is A or B
Step-by-step explanation:

Answer: it’s square root(72) and no the length is not a rational number
Step-by-step explanation:
The answer is 3x (I need 20 characters to send response so here is random words to fill space baidhevebejdb)
Answer:
10 units
Step-by-step explanation:
LMNO is a square.
All sides of square are equal
MN = LM
3x + 1 = x + 7
3x - x = 7 - 1
2x = 6
x = 6/2
x = 3
LM = x + 7 = 3 + 7 = 10
LM = 10 units