Find k(3) for the function k(n) =2n²

k(3) = 18

Step-by-step explanation:

k(n) = 2n²

k(3) = 2 * (3)²

k(3) = 2 * 9

k(3) = 18

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answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.