Answer:
The probability of selecting the color of ball that you just selected(a red ball) is 
Step-by-step explanation:
From the question we are told that
The total number of colored balls is n = 10
The number of red balls is r = 2 red
The number of white ball is w = 4
The number of blue balls is b = 4
The number of balls to be selected is N = 2 balls
The cost of playing picking a ball is c = $10
The winnings is 
Here P(A) is the probability of obtaining the exact sequence of result and from the question it is P(A) = 0.10
Generally my price according to the question is

=> 
Let assume we selected a red ball
Generally the probability of selecting a red ball is mathematically represented as

Answer:
7x+12
Step-by-step explanation:
The answer is 0, hope I helped you!
2.6 * 10^9
-------------
1.3 * 10^2
2.6 / 1.3 = 2 and 10^9 / 10^2 = 10^7
so the answer is 2 * 10^7
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