This is an A. <span>observational study. They are observing the use of cell phones differs between people with or without cancer.
Happy studying ^-^</span>
The radius is half of the diameter.
9/2=4.5
The radius is 4.5 feet.
Hope this helps!
Answer:
10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%
Step-by-step explanation:
100%
is there a picture or equation that you can provide ?
