It's 21.125 hope this works good luck ;)
By definition, the number
is the ratio between the circumference and the diameter:

This implies that

And so your circumference is 
Answer:
I think it's 126cm not sure
Answer:5hours
Step-by-step explanation:
58-10 = 48 dollars remain after the first hour
48/12 = 4 hours after the first hour
1+4=5 total hours
X= 45
z=45
y=90
180-135 is 45 degrees for Z. X is also 45 while y then becomes 90. as 90+45+45=180.