In the problem 3r=9/10 how do you solve this to find out what r is

Find the distance between (0,5) & (-4,2)

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2 acellus answer