Mathematics, 24.01.2022 23:10, ddcope1030
a boy is building a pyramid out of building blocks. he put 20 blocks in the first row, then he puts 19 blocks in the row above, and so on. find the total number of blocks he needs. find the total number of blocks he need
Answers: 2
Mathematics, 22.06.2019 04:30, samsamisam4951
Arectangular garden measures 5m by 7m. both dimensions are to be extended by the same amount so that the area of the garden is doubled. by how much should the dimensions increase, to the nearest tenth of a metre?
Answers: 2
a boy is building a pyramid out of building blocks. he put 20 blocks in the first row, then he puts...
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