Step-by-step explanation:

Answer:
a)B)9π
b)G)16π in²
Step-by-step explanation:
according to the question


as we know
C/d=π
C=dπ
Therefore
C=9π
Two plus nine-teen is twenty one then you subtract seven from that and get fourteen. Your answer is 14 foot
Answer:
Simple answer: 880,302
Step-by-step explanation:
Rule is if the number before the number your rounding is above 4 then it should round up
if its lower than 4 the number your rounding stays as is and the number before it goes down to 0