A bookmark has a perimeter of 20 centimeters and an area of 21 square centimeters. What are the dimensions of the bookmark?

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

Answer! if you don’t mind, can you explain

Which function in vertex form is equivalent to f(x) = x2 + 6x + 3? f(x) = (x + 3)2 + 3 f(x) = (x + 3)2 − 6 f(x) = (x + 6)2 + 3 f(x) = (x + 6)2 − 6