Can someone please help me with this question? Which of the following represents a dilation that is a reduction with a scale factor larger than 1/2?
A: (x, y) ---> (0.4x,0.4y)
B: (x, y) ---> (0.5x,0.5y)
C: (x, y) ---> (1/4x, 1/4y)
D: (x, y) ---> (0.6x, 0.6y)
Thanks!

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

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