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Mathematics 7 Online
OpenStudy (anonymous):

The first and last terms of a 10-term arithmetic series are listed in the table. What is the sum of the series? Term Number Term 1 3 10 75 195 390 780 1125

OpenStudy (anonymous):

@Ilovecake @Godlovesme

OpenStudy (godlovesme):

Sorry.. No idea :(

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