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Which ratio is equivalent to 10: 85

Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store. which equation can be used to determine the approximate shoe size, s, for a foot length of x inches? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?