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Mathematics, 06.01.2020 02:31 ZacharyGallagher

Solve by simplifying the problem. there are 18 students in mr. alvarez’s art class. throughout the year, every student must pair up with every other student to complete a project. how many projects will be finished?
a. 149 projects
b. 153 projects
c. 171 projects
d. 135 projects

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