First find the area, then imagine that the semi circle is a circle, then divide your answer for the “circle” by 2, add them up and voila
2/10 and 2/100 would be the fractions and 0.20 and 0.02 would be the decimals
Answer:
-63 gallons
Step-by-step explanation:
You don't know the original water amount, but it is asking for the change or the difference in the water volume so it doesn't even matter.
Since 7 gallons leak every hour and it is over 9 hours, you can multiply 9 by 7 to get 63 gallons.
The answer is C, 3200 people.