Answer:
You subtract because you're taking away money when you're withdrawing.
Answer:
B
Step-by-step explanation: because this negative
Answer: 34%.
By definition of normal distribution, ≈68% of the data is within 1 standard deviation of the mean. Therefore 68% of IQs are between 85 and 115, and half of that is on the lower end, 85 to 100.