Mathematics, 13.01.2021 01:00, lemoinedegraw

3. In an Art classroom there are two large tables demonstrating artwork drawn by 6th, 7th and 8th graders. One table has 5 drawings by 6th graders, 3 drawing by 7th graders and 9 drawings by 8th graders. The other table has 7 drawings by 6th graders, 12 drawings by 7th graders and 4 drawings by 8th graders. If the teacher selects a drawing from one of the tables to post as the drawing of the week what is the probability that the teacher will select a drawing by a 7th grader? Express your probability answer as a fraction, decimal and percent.

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3. In an Art classroom there are two large tables demonstrating artwork drawn by 6th, 7th and 8th gr...