PLEASE HELP! I need the answers to lesson 9, Functions, Equations, and graphs unit test park 1! There are 14 questions in it.

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.  

Which of the following is the sum of 3 1/6 + 6 3/8?

36x2 + 49y2 = 1,764 the foci are located at: a) (-√13, 0) and (√13,0) b) (0, -√13) and (0,√13) c) (-1, 0) and (1, 0)