Answer:
$17.5
Explanation:
For this problem, you go through division.
Because the tickets cost the same amount, the total must be split equally between each one.
$105/6
If you are not allowed to use a calculator, then use long division.
6 goes into 105 a max of 17 times. (6*17 = 102)
 
 _102__
6 | 105
 102
105 - 102 = 3
Check again. 6 does not go into three at all, so bring a point zero(.0) onto the 3 for visual clarity. It does not change the number itself.
 _102._
6 | 105.0
 102.0
 3.0
6 will go into 30, 5 times. 6*5 = 30
 _102.5
6 | 105.0
 102.0
 3.0
 3 0
 0