i hope my answer help you
Step-by-step explanation:
the probability of pick a blue marble =2/10 ( simplest form =1/5)
the probability of pick a green marble =4/10
the probability of pick another blue marble =2/10 ( simplest form =1/5)
-5 is between -2 and -10 So you use that problem
-20 + 11 = -9
When you use 5. It is between 2 and 10. So you use that problem
5+ 1 = 6