Answer:
I think there is a picture that's suppose to go with this..??
Step-by-step explanation:
Answer:

Step-by-step explanation:
<u>When you want to find area out of diameter. These are the steps you follow:</u>
1. Convert diameter to radius
2. Solve for area
<u></u>
<u>First step:</u>
When you need to convert diameter to radius, you just need to divide by 2


<u>Second step:</u>
Use formula 
A = 
A = 
A= 
Answer:
20%
Step-by-step explanation:
(240/1200)*100
Answer:
50%
Step-by-step explanation:
half were caffeinated and half were not so either way it's 50%