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Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62

Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?