Mathematics, 29.06.2019 19:40, hjkrueger29

Aboard is made up of 9 squares. a certain number of pennies is placed in each square, following a geometric sequence. the first square has 1 penny, the second has 2 pennies, the third has 4 pennies, etc. when every square is filled, how many pennies will be used in total? a 512 b 511 256 d 81

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Aboard is made up of 9 squares. a certain number of pennies is placed in each square, following a ge...