3 because it is a better Dona a toon
An=an-1-3
I hope this helps.
Answer:

Step-by-step explanation:
To find the function h(x), that represents the total number of seats, we just need to multiply the functions f(x) (number of rows) and g(x) (number of seats per row):




So the function that represents the total number of seats is:

Yes the line of the first angle measured 50 is 60