How can you tell if a set bivariate data shows a linear

Sadie computes the perimeter of a rectangle by adding the length, l, and width, w, and doubling this sum. eric computes the perimeter of a rectangle by doubling the length, l, doubling the width, w, and adding the doubled amounts. write an equation for sadie’s way of calculating the

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Find the missing dimension! need asap! tiny square is a =3025 in ²