A=adult pay
c=child pay
3a+4c=83
2a+3c=59
subtract
a+c=24
2a+2c=48
2a+3c-2a-2c=59-48
c=11
a=24-11=13
price of adult ticket=13$
price of child's ticket=$11
1/2 + 4x = 5x - 5/6
1/2 = x - 5/6
3/6 = x - 5/6
x = 8/6
(0,5) (-3, -1) (1, 7) (2, 9) (-5, -5)
P=2(l + b)
P=2l + 2b
P-2b=2l
P-2b/2=l
C is your answer
