Answer:
$19.07
Step-by-step explanation:
Look at image above...
Area of a circle=πr²
A=π*4²
A=16π
A=50.27 ( rounded to nearest 100th)
The expanded form would be: 9 x 2 x 100
47% of them were bacteria, which means 53% of them were not bacteria.
47+53=100 or 100-47=53
I hope this helps :)
I am sorry but I am not sure of this :(