Mathematics, 19.02.2021 18:50 emmilee94

Mr. Hartman, the school librarian, is ordering new keyboards and mice for all of the school's computer labs. Each keyboard costs $13.50, and each mouse costs $6.50. There are 3 computer labs in the school, and each computer lab has s computer stations. Pick all the expressions that represent how much Mr. Hartman will spend on new keyboards and mice.

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Mr. Hartman, the school librarian, is ordering new keyboards and mice for all of the school's comput...