I think u have to answer this question lol it's a opinion
Answer:
looked like as if she was nervous and anxious.
an effort she put to avoid making August feel insecure and judged.
Explanation:
In the book "Wonder", Mrs. Gracia ‘shiny smile' looked like as if she was nervous and anxious not to offend or act differently in front of August.
Though she had been working and taking care of all sorts of children in the school for so many years, August was quite different and extraordinary.
Mrs. Gracia smile could be understood as an effort she tried to make in order to avoid making August feel insecure and judged. She already knew August's circumstances, therefore, she put up with a ‘shiny smile'.
When it comes is the right answer
Given:
Potential difference between capacitor plates = 2.6 V
Dielectric constant of paper , K = 3.7
Solution:
When air is filled, let the potential difference between capacitor plate be V'
Now, after being disconnected from the battery, the charge stored in the capacitor will remain constant
And when dielectric is introduced between the capacitor plates, the potential difference will be reduced by k times a:
V = 
Therfore, V' = KV = 3.7 × 2.6 = 9.62 V
The resulting potential difference of the capacitor, V' = 9.62 V
He was waiting for the bus at the corner