Answer:
Step-by-step explanation:
Since, the radius of the balloon 4 days ago = 5,
⇒
Now, if the radius is decreased by 0.5 cm each day,
Then the current radius of the balloon = 5 - 4 × 0.5 = 5 - 2 = 3 cm,
⇒
Thus, the ratio of the current volume of the balloon to the volume of the balloon 4 days ago
⇒ Option A is correct.
Answer:
Step-by-step explanation:
a1=2
r=4
n=8
So you divide by 2 because there is 2 buildings. You get 760. Now, just take 200 away from one building, and 200 away from the other, and you get 560 for Building A, and 960 from Building B.
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The best and most correct answer among the choices provided by the question is <span>C. 1/20 </span>.<span>
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Hope my answer would be a great help for you.</span>