Answer:

Step-by-step explanation:

Answer: take the first digit of a and divide it by b
Step-by-step explanation: and that should give you your answer and if not please feel free to mesage me.
Answer:
21
Step-by-step explanation:
if u divide 649 by 31 u get 20. 93 Wich u round up to 21
The circumference is found by the multiplying the diameter by pi so 3+3=6 so 6*3.14=18.84 ANSWER IS 18.84