What is the surface-area-to-volume ratio of a cell whose six side are 3mm long when the cells is shaped like a cube (this is seventh grade math)

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?

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