6 books at $ 8 = (6 * 8) = 48
if he got a discount of 20%, then he paid 80%
0.80(48) = 38.40 <== what he paid
<span>what is the volume of the partial cone that makes up the top part of the funnel?
Answer: The best way that you can find the volume of the partial cone that makes up the top part of the funnel using the information provided to you above is using this formula:
Volume = πH(A^2 + AB + B^2)/3.
Where the top and bottom radii are respectively A and B, and whose height is H.
Answer is Choice A) 15.75_ cm3
I hope it helps, Regards.
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