its the day befofe valentines day and shelly needs to get valentine cards for all of her classmates the desks are arranged in a rectangle 7 rows wide and 5 rows long if there are 3 desks that are empty how many students are in the class

21

Step-by-step explanation:

(7x2)+(5x2)-3=21

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the y will be in still but your answer will be y x 3

step-by-step explanation:

jk: )

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