Question 382860
Say, adults price = x
   and student price = y
Then
      2x + 5y = 77 --- (1)
      2x + 7y = 95 --- (2)
(2) - (1) =>
      7y - 5y = 95 -77
      2y = 18
       y = $9 ---(3)
placing y's value in (1)
      2x + 45 = 77
      2x = 32
       x = $16 ----(4)
(3) and (4) are the answers