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Which strategy is used by public health to reduce the incidence of food poisoning?

What is the point slope form of a line with slope -5 that contains point (2,-1)

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle