John received $0.76 change from a purchase in the drugstore. if he received eight coins, and five of the coins are the same deno
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See attachment for one such shell. The volume is given by the sum of infinitely many thin shells like this, each with radius 
and height determined by the vertical distance between the upper blue curve and the lower orange curve for any given , i.e. 
.
The volume is then
The volume is then