PLEASE HELP ME I NEED HELP ON THIS

Anew fountain in the shape of a hexagon will have 6 sides of equal length. on a scale drawing, the coordinates of the vertices of the fountain are: (7.5,5), (11.5,2), (7.5,−1), (2.5,−1), (−1.5,2), and (2.5,5). how long is each side of the fountain?

Which of the following is the true for f(x) = 5cos

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.