Consider the solid of revolution obtained by rotating the region bounded by the graphs of y=2, y=x, and y=-x+6 about the axis y=1. A. Find the volume using disc/washer method
B. Find the volume using the method of cylindrical shells.

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12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

How can i differentiate this equation?