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:
6 is the answer
Step-by-step explanation:
The product would be greater cuz ur dividing 7 by 2 witch is 3.5 then multiplying that by 10 witch would be 35
Answer:
The values of a and be are:
a = 8
b = 1
Lo siento pero no entiendo inglés suerte con tú pregunta 8)