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OpenStudy (anonymous):
Row 1 of the amphitheater has 17 seats. On each successive row the number of seats increase by 5. If there are 30 rows, how many seats does the amphitheater have
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OpenStudy (anonymous):
row1-17 row2-22 row3-27 row4-32 row5-37 row6-42 row7-47 row8-52 row9-57 row10-62 row11-67 row12-72\ row13-77 row14-82 row15-87 row16-92 row17-97 row18-102 row19-107 row20-112 row21-117 row22-122 row23-127 row24-132 row25-137 row26-142 row27-147 row28-152 row29-157 row30-162
OpenStudy (anonymous):
the theatre has 2685 seats
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