Question: 7) An auditorium has 25 rows. The first row has 10 seats and each row after the first has one more seat than the row

7) An auditorium has 25 rows. The first row has 10

7) An auditorium has 25 rows. The first row has 10 seats and each row after the first has one more seat than the row before it. Write a rule for the number of seats in the nth row, then find the total number of seats in the auditorium.

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