Mathematics, 23.03.2021 23:40 abolton04

Brett asked George and Danielle to help him hang up 30 posters for a school dance. He gave 15 of the posters to George. He gave 13 of the remaining posters to Danielle. Brett hung the remaining posters. How many posters did Brett hang?

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Brett asked George and Danielle to help him hang up 30 posters for a school dance. He gave 15 of the...