2a+7a+8b-12b-12-1 9a-4b-13
Answer: (3, -2) i believe
Step-by-step explanation:
The answer for A . 2/3
The answer for B. 1 1/4
Explain
4 pound of flout / 6 loaves
4/6
The common for both number is 2
Divide by 2
4/2 = 2
6/2 = 3
And for b
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Answer: D. 0.1217
Step-by-step explanation:
Given : The probability that a car will have a flat tire while driving through a certain tunnel :p=0.00005.
n= 14000
Then, the mean number of cars will have a flat tire while driving through a certain tunnel = np

Poisson Distribution Formula : 
For x= 2

Hence, the required probability = 0.1217