Answer:
The percent change in Nancy height is 10%
Explanation:
 Given : when Nancy started middle school, she was 60 inches tall. when she started high school, she was 66 inches tall.
We have to find the percent change in her height.
Percentage change is given by the ratio of the difference in old value and new value to the old value times 100 
Mathematically written as 

For the given data,
Old value = 60 inches 
New value = 66 inches 
Thus, the Percentage change is given as, 

Simlify, we have,

Thus, The percent change in her height is 10%