Always have a friend to make things more fun
Answer:
Probability of tractor do not start = 7.67%
Explanation:
Given data:
Probability of not start at red = 6%
Probability of not start at white = 11%
Probability of not start at Blue = 8%
Percentage of tractors produced in red line = 48%
Percentage of tractors produced in white line = 31%
hence Percentage of tractors produced in white line = 1 - 0.48 - 0.31 = 0.21
Probability of tractor do not start 
Probability of tractor do not start = 0.0288 + 0.0231 + 0.0248 = 0.0767
Probability of tractor do not start = 7.67%
Sustainable nutrition means eating foodstuff from sources
that protect the environment and food stocks in the long term. Much of our
foodstuff unfortunately does not come from sustainable sources. If you are a
teacher, you must start introducing children to the topics of environmental
science and agriculture so they can understand the relationship between environment
and agriculture.
Make a list from most to least important