Answer:
sorry I can't help you. ...............
Step-by-step explanation:
Answer:
a) 
b) 
Step-by-step explanation:
Number of balls in the urn = 12
Number of white balls in the urn = 4
So, number of balls which are not white = 12 - 4 = 8
We know that probability = No. of outcomes/Total number of outcomes
Let
denotes the event of getting white ball by A, B and C
a) each ball is replaced after being drawn.
Probability = Number of white balls/Total number of balls
Solution: 
b)the balls that are withdrawn are not replaced.
Solution:
If A wins: 
If A lost and B wins: 
If A and B lost and C wins: 
and so on....
Answer:

- Sales price= $
List price=L Discount

Step-by-step explanation:
The percentage discount is 
The discount is always given on the list price.

Let the list price be L, then
List price=L
Sales price= $
Discount
We substitute into the equation to get:


Divide both sides by 0.805


The list price of the swimming pool is $1450
The answer is -1 because when cross simplifying you get 0/2-2/0 which =-2/2 and that simplified is -1
The answer is -1