Your multiplying by -4 each time
-1x-4=4
4x-4=-16
-16x-4=64
Answer:

Step-by-step explanation:
In other words, carl's losing odds are 7 : 5, so his winning odds will be 5 : 7
So if they play (7+5=12) 12 times, carl will win 5 times.
To find probability that carl will beat his friend, we take the probability of Carl winning. Simple!
The probability is 5/ 12
a1 = 54
a2 = (1/3)a1 = (1/3) * 54 = 18
a3 = (1/3)a2 = (1/3) * (1/3)a1 = 18/3 = 6
etc.

Answer:
(19.6,-12)
Step-by-step explanation: