Question 1108276
one kid =x 
one adult = y 
28x +5y = 284
40x + 10y = 440

2(28x + 5y = 284)   56x + 10y = 568
1(40x + 10y = 440)  40x + 10y = 440
                   -     -      -
                   ____________________
                    16x = 128
                      x = 8
     one kid admission = $8