The area of the regular hexagon is 169.74 ft2 what is the perimeter, rounded to the nearest tenth

Need on this geometry question. explain how you did it.

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.

Can someone, me with this. i really need with this