The graph of a quadratic function shown on the grid. if the axis of symmetry is represented using the equation x=k What is the value of k

Asap i need it now choose all the answers that apply. sex-linked disorders affect males more than females affect females more than males can be carried by females, without being expressed are always expressed in males are caused by genes carried on the x and y chromosomes

What is the solution to the equation below? 3/x-2+6=square root x-2 +8

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.