The area of a square rug is 169ft^2. How long is each side of the rug?

Step-by-step explanation:

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this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x

the square root of 16 is 4.

4*4 = 16