The formula for volume of a sphere is V = 4
/3 x π x r3 (cubed).
The original radius of the balloon is 10 ft, so when we plug that value into the equation we get 4188.79. When the balloon deflated, the new radius was 5 ft, so the new volume is 523.6. The question asks how much volume was lost, so we need to subtract 4188.79 - 523.6 and get approximately 3665.
Hope this helps! I hate taking usa test prep quizzes too haha.
You will need to purchase a minimum of 13 packages of iris bulbs
-3(-6b+5) -3 times -6b= 18b and -3 times 5= -15 so the answer is 18b-15
23%.
Please vote my answer brainliest! Thanks.
Answer: B - 4.0
Step-by-step explanation:

(Cross multiply) 

