Answer:
Step-by-step explanation:
Random
Step-by-step explanation:
the formula to calculate a circumference is

(consider x as the diameter)
so I'll be noting the circumference as C alongside the circle's ranking
a.

b.

c.

hope I helped
Answer:
-6.1
Step-by-step explanation:
Hope this helps!
Answer:
the answer is 35/54
Step-by-step explanation:
times the numerator and the denominator see if you can simplify it