Answer:
30%
Step-by-step explanation:
Answer: A. 51%
Step-by-step explanation:
Area of circle =
, where r = radius of the circle.
In the figure below, we have the complete question.
According to that,
Radius of outer circle = 7ft
Radius of inner circle = 5ft
The probability that the thumbtack will be placed on the inner circle
[π is canceled from numerator and denominator
in percent, 
So, the probability that the thumbtack will be placed on the inner circle = 51%
Hence, the correct option is A. 51%.
The answer to the question is B.14 because 3 + 5 + 6
Answer:
6.58
Step-by-step explanation:
ahahahaha lol