0.281 is the chance that you would pull 2 blue marbles
Answer:
1= 70
2= 65
3= 95
For 1, just solve 180-(65+45) and then for 2, subtract #1 and 45 from 180. Then just solve for #3 by using 180-(#2+20)
Between 2 and 6 means the set is more than 2 and less than 6
x is the set
x>2 and x<6
2<x and x<6
2<x<6
it is wrong that they wrote
2>x>6, means x is les than 2 and greater than 6
no solution
correct way is 2<x<6
Variables are like a substitute for a number