If your good at geometry help me out. Please don't answer this question unless you will answer the one at the link or will attempt to.
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What properties allow transformation to be used as a problem solving tool

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x

Three students, javier, sam, and corrine, participated in a fundraiser where people donated a certain amount of money per lap that the student ran. each student also had some initial donations that were collected before the run. the equations that represent each student's total donation, y, based on the number of laps ran, x, is shown below. match each equation with the correct rate of change for that student.