Is the relation function?

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The surface area (sa) of a cube with a as the length of each of its sides is given by the formula . if the surface area is known, how can you rewrite the formula to find its side?

Enter the missing numbers in the boxes to complete the table of equivalent ratios.time (min) distance (km)? 36 9? 1512 ?

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12