About 68% of the people will score between 85 and 115.
The values of 85 and 115 are exactly 15 points away, or 1 standard deviation, away from the mean.
According to the empirical rule, about 68% of the values in a normal distribution are within 1 standard deviation of the mean.
Answer: (9,6)
Step-by-step explanation:
13x+4
Combine like terms
If there is a minus sign count it as a negative