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3 years ago

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the first row the theater has 15 seats in it each subsequent row has 3 more seats that seats that the previous ow . if the last

row has 78 sears, how many rows are in the theater a 21 b 78 c 77 d 45 e 22

1 answer:

ivann1987 [24]3 years ago

7 0

Answer:

21 rows

Step-by-step explanation:

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