David had test scores of 84, 90, 95, 98, and 88. Find the mean/average of these test scores.
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Which of the following points is collinear with (-2,1) and (0,3)

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

In the diagram, the ratios of two pairs of corresponding sides are equal to prove that almn - axyz by the sas similarity theorem, it also needs to be shown that x 6 z un z zz un = 2x zləzz lezy