Answer: 88
Step-by-step explanation:
Given
The first row has 16 seats
then there are 3 more seats in each row
this follows an AP with the first term
and common difference 
So, no of seats in the 25 th row is

Thus, there are 88 seats in the 25 th row
Answer:
51 units2
Step-by-step explanation:
42 + 9 = 51 units2
She would be right because if you look at it she folded the paper in half, so A was on top of B. And yes it does form right angle it's a lot easier to see if you do it is a little hard to explain~ Sorry