Pls answer asap the sooner the better :)

The vector matrix [2/7] is dilated by a favor of 1.5 and then reflected across the x axis. if the resulting matrix is [a/b] then a= and b=

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points

Let event a = you roll an even number on the first cube.let event b = you roll a 6 on the second cube.are the events independent or dependent? why?