Mathematics, 13.06.2020 02:57, dmgcity

20. Joshua scored a 70, 80, 85, and 90 on his first four math quizzes. What 1 point score will Joshua need to earn on his fifth quiz to have an average of 80? *

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20. Joshua scored a 70, 80, 85, and 90 on his first four math quizzes. What 1 point score will Josh...