Smart about slopes help pls

1: 1

2: -1

3: 1/2

4: -3

5: 1/3

6: also 1

7: people might mix up x and y and instead of doing y rise/x rise, they might do x rise/y rise

I can't see 8 9 10 or 11 so I'm going to assume thats it. Hope this helped :)

.24

step-by-step explanation:

the probability is   .24

the first player had the highest probability of getting a silver marble

the game could be made fair by adding back the marble that was drawn after each draw

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13