A Nevada roulette wheel has 38 pockets. One is numbered 0, another is numbered 00, and the rest are numbered from 1 through 36.Except for 0 and 00, which are colored green, the numbers on the roulette wheel alternate red and black.

One bet is on a number. If you bet a dollar on a number and the number comes up, you get the dollar back together with $35 dollars in winnings. If a different number comes up, you lose your dollar.

The box model for this problem is as follows: The box contains ————tickets numbered +$35 and ———— tickets numbered -$——————.

Suppose you play roulette 50 times, betting a dollar on the number 7 each time. Your net gain is like the sum of—————— draws from the box described above.

Suppose you play 5 times, betting a dollar on 7 each time. Suppose the results of the 5 plays are as follows: 1, 00, 34, 7, 19. Your net gain is +$——————