Answer:
The minimum guaranteed mileage is 
Step-by-step explanation:
From the question we are told that
The mean is 
The standard deviation is 
Generally for the probability to be 4% the minimum guaranteed mileage is evaluated as



=> 
=> 
From the z table, the critical value corresponding to 0.96 to the left of the curve is

So

=> 
(21 * 1.10) / 3 = 23.10/3 = 7.7....so each friend has to pay $ 7.70
Answer:
x = 0
Step-by-step explanation:
6(x + 1) -5x = 8 + 2(x - 1)
6x + 6 - 5x = 8 + 2x - 2
6x - 5x - 2x = 8 - 2 - 6
- x = 0
2(3)+6
Explanation
2(3+3)=12
2(3)+6
6+6=12
Equivalent