Answer:
35.5 pounds or less
Step-by-step explanation:
99.7% is a z score of 2.75
(x - 30)/2 = 2.75
x - 30 = 5.5
x = 35.5
The answer is 67
Add all the sides up and you get 67
Answer: 16.8
Step-by-step explanation: 12% of 140 = 16.8. (I’m not sure what I say for the explanation! Really sorry! But I hope I helped!)