Mathematics, 19.11.2020 14:00 neariah24

A concert hall has 10 seats in the first row and 12 seats in the second row. If each row has 2 more seats than the previous row, and there are 30 rows of seats, how many seats are in the entire concert hall? PLEASE HELP

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A concert hall has 10 seats in the first row and 12 seats in the second row. If each row has 2 more...

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