3. a theater has 60 seats in the first row, 68 seats in the second row. 76 seats in the
third row, and so on. if the theater has 20 rows of seats, how many seats are in the 20
row of the theater?
state the arithmetic sequence explicit formula:
list your values below.
an=
d=
an =
state the explicit formula for the problem:
how many seats are in the 20th row?